—Where did you come across our Chinese teacher?
—It was in the supermarket ________ I purchased mooncakes.
| A．that | B．which |
| C．where | D．when |
You'd better not ride the bicycle on snowy days; you ______ fall．
| A．must | B．might |
| C．have to | D．ought to |
—Hi, Jack．You look a bit fat now．
—Yes, I ______ five pounds recently．
| A．am putting on | B．will put on |
| C．have put on | D．had put on |
Every book ______ from the library should be returned on time．
| A．borrow | B．to borrow |
| C．borrowing | D．borrowed |
My sister has a habit of keeping a diary and writes down ______ happens every day．
| A．how | B．when |
| C．which | D．what |
The cinema ______ ten years ago when we first moved to this town．
| A．built | B．has built |
| C．was built | D．would be built |