1 I haven't seen a movie for a long time.

`-` for a long time : DHNB HTHT.

`=>` S + have/has + Vpp + O.

2 The students were made work hard for the exam by their teacher.

`-` Bị động QKĐ: S(pv) + was/were + Vpp + O.

3 The homework is being done by the children at the moment.

`-` Bị động HTTD: S(pv) + is/am/are + being + Vpp + O.

4 A big steak was brought to him by the waitress.

`-` Bị động QKĐ: S(pv) + was/were + Vpp + O.

5 They are going to organize an English speaking contest for all the students.

`-` Hành động sắp sửa diễn ra trong tương lai.

`=>` Thì TLG: S + be + going to + Vinf + O.

6 Before she went shopping with her friends, she had finished the work in her office.

`-` Before + S + V(qk) + O, S + had + Vpp + O: Trước khi ai đó làm gì, ai đó đã làm gì.

`1.` I haven't seen a movie for a long time.

`-` Thì HTHT: S + haven't/hasn't + V3/ed + for + khoảng thời gian

`2.` The students were made to work hard for the exam by their teacher.

`-` Bị động: Với make: S + tobe + made + to + V(bare) + (by O)

`3.` The homework is being done by the children at the moment.

`-` Bị động: HTTD: S + is/am/are + being + V3/ed + (by O)

`4.` A big steak was brought to him by the waitress.

`-` Bị động: Với 2 tân ngữ: S + tobe + V3/ed + giới từ + O (sb `->` tân ngữ gián tiếp) + (by O)

`5.` They are going to organize an English speaking contest for all the students.

`-` intend to + V(bare) = be going to + V(bare): dự định làm gì

`6.` Before she went shopping with her friends, she had finished the work in her office.

`-` Before + QKĐ (S + V2/ed), QKHT (S + had + V3/ed): trước khi `->` Một hành động diễn ra trước một hành động khác trong quá khứ