1. yes terday I(meet)met an old friend on the way home. He(leave)left school three years ago. He(be)is a college student now.

2. What(you/do)are you doing now?- I(listen)am listening to music.

3. There(be)was nothing interesting on TV last night, so I (go)went out with my friends.

4. He(live)has lived in the orphanage since he(be)was one year old.

5. Where is your mother?- She(talk)is talking with my father in the living room.

6. (you/ watch)Did you watch TV last night?

7. She never(stay)stays up last night.

8. His father(drink)drinks coffee every mrrning.

9. How long have (you/ learn)you learnt English?

- I (learn)have learnt English for four years.

10. The sky(get)is getting darker now.

1. You should pracite(speak)speaking English every day.

2. It (get)gets hotter and hotter in April.

3. We (already/ finish)have already finished the first semester exams.

4. Mr. Thanh(learn)learns French at school, buts he (forget)forgets most of it.

5. The pop concert(stsr)is starting at 8.00 this evening.

6. We(have)will have a party next Sunday. Would you like (come)to come?

7. When we (be)were small, our family(live)lived in the countryside.

8. I (read)am reading an interesting book at the moment. I(lend) lend it to you when I finish iy.

9. Look! Our new teacher(come) is coming. She(have)has long, black hair.

10. I (not invite)don't invite Lan to the party because I forgot her phone number.

gọi 4 số cần tìm là: a;(a+1);a+2;a+3

ta có: a*(a+1)*(a+2)*(a+3)=1974024

từ đó, làm ra

Hai hộp bánh mẹ mua hết số tiền là :

24000 x 2 = 48000 (đồng)

Sáu chai sữa mẹ mua hết số tiền là :

98000 x 6 = 58800 (đồng)

Số tiền ban đầu mẹ có là :

58800 + 48000 + 93200 = 200000 (đồng)

ĐS : 200000 đồng

Bn vẽ hình nha.

Vẽ tia Oz sao cho Oz//Ax

\(\Rightarrow\) góc xAO = góc AOz (so le trong)

mà góc xAO = 30⁰

\(\Rightarrow\) góc AOz = 30⁰

Ta có:

Ax//By (gt)

Ax//Oz (cách vẽ)

\(\Rightarrow\) By // Oz (Định lí 3 trong bài từ vuông góc đến song song)

\(\Rightarrow\) góc zOB + góc OBy = 180⁰ (trong cùng phía)

góc zOB + 150⁰ = 180⁰ (góc OBy = 150⁰ (gt))

góc zOB = 180⁰ - 150⁰

góc zOB = 30⁰

mà góc AOB = góc zOB + góc AOz

\(\Rightarrow\) góc AOB = 60⁰

mk

1.Will you post this letter on the way to work ?                  \(\rightarrow\)             Will the letter be posted on the way to work?

2.He won't tell me the truth about the situation                   \(\rightarrow\)             I won't be told the truth about the situation.

3.Mr.Smith will appoint Tom the director tomorrow.        \(\rightarrow\)             Tom will be appointed the director tomorrow.

4.When will you do the work?                                             \(\rightarrow\)             When will the work be done?

Has Tom finished the work?       \(\rightarrow\)          Has the work been finished by Tom.

1. Elephants are bigger/ biger/ more big/ big than bears.

1. I have finished doing my home work yet

2. I ( know ) have known Tam for some years

3. We ( attend ) have attended Tran Quoc Tuan high school for three years.

4 . Have you ever ( be ) been there ? 

5 . My father ( work ) has working for his company for 25 years.