bài 1:thực hiện phép tính

a,\(\frac{65}{91}\)+\(\frac{-33}{55}\) b,\(\frac{36}{-84}\)+\(\frac{100}{450}\) c,\(\frac{3}{7}\)+\(\frac{1}{2}\)-\(\frac{-3}{70}\) d,\(\frac{3}{5}\)+\(\frac{-1}{25}\)-\(\frac{-35}{100}\)

bài 2:tìm x,bt

a,x-\(\frac{-1}{5}\)=\(\frac{7}{25}\) b,x+\(\frac{5}{11}\)=\(\frac{4}{-9}\) c,\(\frac{5}{9}\)+\(\frac{x}{-1}\)=\(\frac{-1}{3}\) d,|x-4|=|\(\frac{-6}{7}\)|+\(\frac{3}{2}\)

bài 3:tính nhanh(hợp lí)

a,A=\(\frac{2}{15}\)+\(\frac{2}{35}\)+\(\frac{2}{63}\)+\(\frac{2}{99}\)+\(\frac{2}{143}\)

b,B=\(\frac{1}{21}\)+\(\frac{1}{77}\)+\(\frac{1}{165}\)+\(\frac{1}{285}\)

c,so sánh C=\(\frac{1}{11}\)+\(\frac{1}{12}\)+\(\frac{2}{12}\)+.................+\(\frac{1}{20}\)với \(\frac{1}{2}\)

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dựa vào bài thơ:đêm nay bác ko ngủ,em hãy viết 1 bài văn ngắn= lời của người chiến sĩ

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trong bài thơ cs khổ thơ:

Anh đội viên nhìn Bác
Càng nhìn lại càng thương
Người Cha mái tóc bạc
Đốt lửa cho anh nằm.

hãy viết đoạn văn từ 5=>7 dòng chỉ ra biện pháp nghệ thuật và nêu tác dụng?

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I.Find the word which has a different sound in part underlined

1,A.cold B.shop C.sold D.most

2,A.smile B.time C.kite D.miss

3,A.broad B.coast C.soap D.boat

4,A.reply B.shy C.worry D.dry

5,A.know B.cow C.slow D.show

II.Choose the best answer(A,B,C or D)

1,the Eiffel Tower is the wos__________________landmark in the word

A.visit B.visiting C.visited D.to visit

2,when we were in stockholm,we had coffee and cakes___________________a coffee shop_____________________the old town

A.on-on B.at-at C.in-in D.on-at

3,do you know the most_____________________drink in Vietnam?

A.popular B.cheap C.hot D.best

4,people in tokyo are very polite_________________friendly

A.or B.but C.so D.and

5,have you ever___________________to wanchester?

A.be B.been C.being D.went

6,i think it is a very nice town_________________the weather is good and the people are friendly

A.becouse B.if C.so D.although

7,this is the first time that i___________________a 30 film

A.watch B.watched C.wathes D.have watched

8,i_______________Hue four time in all

A.visit B.visited C.visiting D.have visited

9,the red doubele-decker bus is London's famous_____________________

A.sign B.signal C.symbol D.logo

10,which______________is trance in?Europe

A.country B.continent C.city D.areaIII.Complete each sentence by using the appropriate wrbs in the box in present perfect tence(điền từ theo thì hiện tại hoàn thành)

1,the boy_______________an ice cream

2,nam and dung_____________________a book

3,lan_______________________football

4,we_________________________big ben clock tower

5,mr.tho_____________________in the rain many times

6,thuy and her grandmother__________________tv

7,hoa___________________water

8,my father__________________a meal

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write 5 interesting facts about your favourite cities,usting the superlative of long adjectives

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I.write the superlatives of the following adjectives

II.complete the sentence using the superlatives of the adjectives in brad

ex:nam is the youngest studeert in his clase(young)

1, nile river is___________________river in the world(long)

2,this book is______________________of three books(interesting)

3,Ho chi minh city is_____________________city in viet nam(big)

4,they are_______________________students is my class(good)

5,these house are_________________in the village(beautiful)

6,winter is________________season in the year(cold)

7,airplane is_________________means of tran sport(fast)

8,he is__________________person in the meeting (inportant)

9,i am_______________________man in the world(happy)

10,this is__________________party i've been to(bad)

giúp mk với ạ,mk đag cần gấp

bài tập thì hiện tại đơn,hiện tại tiếp diễn,tương lai đơn và quá khứ đơn

1,look!he(leave)..........................the house

2,quiet please!i(write)......................a test

3,she usually(walk)......................to school

4,but look!today she(go)..........................by bike

5,liz(enjoy).......................her summer vacation last year

6,nam(was)...........................absent from school yesterday

7,they(jinish)..........................their work tomorrow

8,she(have)..................................a round face and long black hair

9,he(do)................the house work on sundays

10,he(do).......................the house work last sunday

11,we(watch)......................a cartoon 3 days ago

12,every sunday we (go)...........................to see my grandparents

13,he often(go).................to the cinema

14,we(play).........................monopoly at the moment

15,the child seldom(cry)................................

16,i(not/do).....................anything at the moment

17,(watch/he)...................the new regularly?

18,minh(not go).................to the dentist tomorrow

19,mozart(play)...............the piano when ha was three

20,he(brush)....................his teeth every night

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bài 1:cho dạng đúng của động từ trong ngoặc

1,my sister(get).......................married last month

2,daisy(come)...........................to her grandparents' house 3 days ago

3,my computer(be)................................broken yesterday

4,he(buy)........................me a big teddy bear on my birthday last week

5,my friend(give).......................me a bar of chocolate when i(be)..........................at school yesterday

6,my children(not do).....................their homework last night

7,you(live).....................here five year ago?

8,they(watch)....................tv late at night yesterday

9,your friend(be)....................at your house last weekend?

10,they(not be)..........................excited about the film last night

bài 2:hoàn thành câu sau đúng dạng thì quá khứ đơn

1,it/be/cloudy/yesterday

...................................................

2,in 1990/we/move/to another city

...............................................................

3,when/oyu/get/the first gift?

..................................................

4,she/not/go/to the church/five days ago

..........................................................

5,how/be/he/yesterday?

.........................................

6,mrs.james/come back home/and/have/lunch/late/last night?

.........................................................................................

7,they/happy/last holiday?

......................................................

8,how/you/get there?

................................................

9,i/play/football/last/sunday

.........................................

10,my/mother/make/two/cake/four/day/ago

.....................................................................

11,tyler/visit/his/grandmother/last/moth

.............................................................

12,joni/go/zoo/five/day/ago

......................................................

13,we/have/fun/yesterday

............................................

14,my/father/be not/at the office/the day/before yesterday

..................................................................................

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https://hoc24.vn/hoi-dap/question/948696.html(đây là câu thứ 1)

7,trong các phân số sau\(\frac{-12}{5}\),\(\frac{4}{5}\),\(\frac{12}{-5}\),\(\frac{-24}{10}\),số cặp phân số bằng nhau lập từ các phân số đã cho là bao nhiêu?

8,từ đẳng thức a,5.20=25.4

b,a.b=b.c

c,(-3).12=(-9).4

d,3.55=11,15

hãy lặp các cặp phân số bằng nhau

9.từ đẳng thức ;9.2=6.3 ta lập đc cặp phân số bằng nhau là \(\frac{9}{x}\)=\(\frac{3}{2}\).Cs bao nhiêu giá trị x thỏa mãn?là giá trị nào?

10,từ các chữ số 2,4,9,18 cs thể lập đc bao nhiêu phân số bằng nhau.Viết các cặp phân số bằng nhau đó

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I.điền tobe:was hoặc were

1,yesterday_____monday.I_____at school

2,Mom and Dad___at home yesterday

3,The weather _____not nice.It was windy and raing

4,_____he free all day yesterday?

5,She ____tired lest night

6,My friend_____in London last month

7,______you at Nina's house yesterday?

8,____you busy 2 days ago?Yes,I___

II.chia động từ trong ngoặc theo thì quá khứ đơn

1,Yesterday,I(go)____to the restaurant with a client

2,That(be)____better than waiting for two hours

3,She(get)_____married last sunday?

4,What you(do)_____last night?

5,I(love)_____him but no more

6,We(stop)____in the grocery storo and (buy)____some sandwiches

7,They(rien)_____on the beach two weeks ago

8,We (arrive)____late but the teacher(not punish)_____us

mn giúp mk với ạ