46. My cousin has worked as a bank clerk for 3 months.

→ S + started/began + to_V/V_ing + time + ago: Lần đầu làm gì

= S + have/has + V3/ed + for + time 

47. Mai spends 3 hours doing her homework every day.

→ It + takes/took + O + time + to_V: Nó tốn bao nhiêu thời gian để làm gì

= S + spend ( chia theo thì )+ time + V_ing

48. A new mall will be built here.

→ S + will + be + V3/ed + (by+O): câu bị động thì TLĐ

49. She said that she was working in a restaurant, and didn't care much for it.

→ S + said (that) + S + V(lùi thì) ( vế đầu lùi thì HTTD → QKTD, vế sau lùi thì HTĐ → QKĐ )

50. I wish I could remember the answers to these questions.

→ S + wish(es) + S + would/could/should/might + V0: future wish

$\Rightarrow$

46. My cousin has worked as a bank clerk for 3 months.

- Cấu trúc: S + started/ began + V-ing/ to-V + khoảng thời gian.

= S + have/ has + PII + since + khoảng thời gian/ for + khoảng thời gian.

47. Mai spends 3 hours doing her homework every day.

- Cấu trúc: It takes/ took + (O) + time + to-V.

= S + spend(s)/ spent + time + V-ing.

48. A new mail will be built here.

- Cấu trúc chuyển từ câu CĐ sang câu BĐ:

CĐ: S + V + O.

$\to$ BĐ: S + be + PII + (by + O).

49. She said that she was working in a restaurant. and didn't care much for it.

- Cấu trúc câu tường thuật dạng câu kể: S + say(s)/ said/ told + (that) + S + V.

- Lùi thì: Thì HTTD về thì QKTD, thì HTĐ về thì QKĐ.

50. I wish I could remember the answers to these questions.

- Cấu trúc câu ước diễn tả sự khó chịu, bực mình của người nói trước 1 sự việc ở hiện tại và muốn nó thay đổi: S + wish + (that) + S + could/ would + V(inf).