lp 6 mà khó vậy ?

1, Peter fell down the stairs this morning and broke his leg.

2, John watched T.V when his friend rang him up last night.

3, My mother is busy to cook dinner in the kitchen.

4, Daddy, could you tell me how to run this washing machine ?

5, My father used to be a teacher . He tought chemistry at a local school.

6, You had better brush your teeth after every meal.

7. Why didn't you take part in English test yesterday ?

1. I"d /sit down/have/cold drink

=>I'd like to sit down and have a cold drink.
2. How much/one kilo/pork? / It/90.000 dong

=> How much does one kilo of pork cost ? It costs 90.000 dong

3. Huy/not/strong./Nam

=> Huy is not as strong as Nam
4. sister/not old/enough/go/school/alone

=> My sister is not old enough to go to school alone
5. Boy/too weak/walk/school

=> The boy is too weak to walk to school.
6.What/you/do/now?/I/listen/music

=> What are you doing now ? I am listening to music.
7. Where/mother/go/yesterday?/she/go/supermarket

=> Where did your mother go yesterday? She went to the supermarket
8. How often/father/play/volleyball?/he/play/volleyball/twice/week

=> How often does your father play volleyball ? He plays volleyball twice a week.

II

1. How much is a bar of soap?
-> How much does a bar of soap cost ?
2.I am as tall as my sister
-> I am the same height as my sister
3.The blue bike is not the same as red one.
-> The blue bike is different from red one.
4.Why don't we clean the beaches?
-> How about cleaning the beaches?
5.The boy is too small to take part in the judo club.
-> The boy can not take part in the judo club because he is too small .

1 . How often do you go to the movies ?

2 . Where did they go for last summer holidays ?

3 . How long did he stay in a hotel ?

After school , there are much work I have to do . First , I often go home at half past five . Next , I help mom with housework and I take a shower at six o'clock . Then , I usually play badminton with my brother at the backyard . It's really good for my health . Afterthat , I have dinner at half past six . Finally , I do my homework and go to bed at night p.m . That's my work daily day .

1 . so do they

2 . too

3 . Neither can

4. so is

5 . too

6 . So was

7 . So are

8 . Neither did

9 . don't too

10 . Neither does

a) TH1 : nếu AC < AB thì góc B < góc C ( trái vs gt )

b) TH2 : Nếu AC = AB thì hai góc B = góc C ( trái vs gt ) *tam giác cân *

Vậy nếu AC> AB thì góc B lớn hơn góc C

Cho hình bình hành ABCD. Gọi I, K theo thứ tự là trung điểm của CD, AB. Đường chéo BD cắt AI, CK theo thứ tự ở M và N. Chứng minh rằng:

a) AI // CK

b) DM = MN = NB

Khi nói về mức phản ứng, điều nào sau đây không đúng?

A. Mức phản ứng là giới hạn thường biến của cùng một kiểu gen

B. Ở giống thuần chủng, các gen đều có mức phản ứng giống nhau

C. Mức phản ứng do kiểu gen quy định nên di truyền được

D. Tính trạng chất lượng thường có mức phản ứng hẹp