—Why didn’t you stop them from in the lake? It was too dangerous. — Sorry, I forgot it. A. swimming B. swim C. to swim
The teacher asked the students _________________.
---Mum,_______ I watch TV? ---No. Unless your homework _______________.
---When did you return to China? ---_________________.
The rain has stopped. Why not ___________ the raincoat?
The book is_____________ interesting __________ I can’t even drop it for a minute.