Bài `10` :

`1.`Peter hasn't been seen since the day of the party.

`->`Bị động với hiện tại hoàn thành : S + have/has (not) + been Vpp + (by O)

`2.`It's over twenty years since we last saw him.

`->`S + have/has not + Vpp + since/for + time

`=`It is + time + since + S last + V2/ed

`3.`Before she went to the zoo last year, she had never seen a real tiger.

`->`Diễn tả một hành động xảy ra trước một hành động khác : Before + S + V2/ed, S + had + Vpp

`4.`The fog prevented us from driving.

`->`S + prevent + O + from + V-ing : ngăn cản ai làm việc gì đó

`5.`No longer does he depend on his parents for money.

`->`Đảo ngữ của No longer : No longer + aux.V + S + V

`6.`I have never read such an interesting novel before.

`->`It/This is the first time + S + have/has + Vpp : lần đầu tiên làm việc nào đó

`=`S + have/has never + Vpp + before

`7.`In spite of living in difficult conditions, she worked very hard.

`->`In spite of + N/Ving, S + V

`8.`It took more than three hours to flight from Bangkok to London.

`->`S + take(s)/took + time + to V : ....bao nhiêu thời gian để làm gì

`9.`The weather wasn't fine enough for us to go sailing.

`->`S + be + not + Adj enough + for O + to V : không đủ như thế nào cho ai để làm gì

`10.`By the time we arrived at the airport, the plane had taken off.

`->`Nhấn mạnh một hành động trong quá khứ xảy ra thì đã có một hành động khác xảy ra trước đó : By the time + S + V2/ed, S2 + had + Vpp

No one has seen Peter since the day of the party -> Peter.......hasn't been seen since the day of the party.............................. 2. we haven't seen him for over 20 years -> It's.......over 20 years since we saw him........................................... 3. She went to the zoo last year and that is where she saw a real tiger for the first time -> Before she.......went to the zoo last year, she had never seen a real tiger........................................ 4. We couldn't drive because of the dog -> The fog prevented......us to drive........................... 5. He used to depend on his parents for money. -> No longer.......did he depend on his parents for money.............................. 6. It is the most interesting novel I've ever read -> I have......never read more interesting novel than this one............................................... 7. Although she lived in difficult conditions, she worked very hard -> In spite of.......living in difficult conditions, she worked very hard......................................... 8. The flight to London lasted more than 3 hours. -> It.......was 3-hour flight to london......................................... 9. The weather was so bad that we couldn't go sailing. -> The weather was not.....fine enough for us to go sailing............................... 10. The plane took off before we arrived at the airport -> By the time.....we arrived at the airport, the plane had taken off...........................