She had done nothing but cry,.....? A.had she. B. hadn't she C. Did she. D. Didn't she

Bush's completely unaware of how much damage he did the company,....? A. Isn't he B. Is he C.did he. D didn't he

Tìm lỗi sai và sửa

1, the boy is serious lll so the doctor decides that he will have an operation

2, are you staying here ? Yes, I'm

3, Ba always get excellent grades because he studies hardly

4, Sharon is very tired now because she went an eight hours tour to day

5, did the goverment do anything to prevent people throw away drink cans ?

fill a suitable preposition in each blank

1. the athlete compete............skiing and other winter sports

2. the competitors compete...........gold medals

3. the doctor advised him to give........smoking

4. the shop ứa crowded..............last-minute shoppers

5. are you qualified.............that job ?

. some gases are harmful............human

khi mắt không điều tiết một người chỉ nhìn rõ dòng chữ trên bảng cách mắt 2 cm còn khi mắt điều tiết mạnh nhất người đó có thể nhìn rõ dòng chữ trên bảng cách mắt 12 cm. Khoảng nhìn rõ của mắt người đó là???

trình bày chi tiết giúp em !!!

tìm lỗi sai và sửa

1) His family was very poor, because he had to work for a company

2) You know where Lan is, do you?

3) when you want to go fishing this morning, I'll go with you

4) I've watched the film what is about the life other people

5)If I met an ailen, I would invited him to my home and talk

\(\left\{{}\begin{matrix}x^2+xy+y^2=19\left(x-y\right)^2\\x^2-xy+y^2=7\left(x-y\right)\end{matrix}\right.\)

giải hpt

1/2 cai banh

\(\frac{3+\sqrt{5}}{2\sqrt{2}+\sqrt{3+\sqrt{5}}}+\frac{3-\sqrt{5}}{2\sqrt{2}-\sqrt{3-\sqrt{5}}}\)

rút gọn