Studies show that students often ________ to too much pressure tend to develop mental problems.
| A．exposing | B．being exposed |
| C．to expose | D．exposed |
Many famous writers are reported ______ long before they started reading themselves.
| A．to have read to | B．to have been read to |
| C．having been read to | D．being read to |
Every time ______ I see the picture there, I think of my days in a remote mountain village.
| A．when | B．while | C．as | D．/ |
Almost all the students were having classes when the earthquake _________.
| A． broke out | B． put out | C． came out | D． got out |
______ more attention, the tree could have grown better.
| A． Given | B． To give | C． Giving | D． Having given |
Tom, you _____ leave all your clothes on the floor like this!
| A． wouldn’t | B． mustn’t | C． needn’t | D． may not |