Robert is said _______ abroad, but I don’t know what country he studied in.
| A．to have studied | B．to study |
| C．to be studying | D．to have been studying |
--- Time passes quickly, doesn’t it?
--- Yes. It will be only two months_______we take the 2010 College Entrance Examination.
| A．since | B．after | C．before | D．when |
Children in the countryside can receive education ________ free since last year.
| A．for | B．in | C．of | D．on |
--- I can’t find Xiao Ping. Where did you see him this morning?
--- In the reading room _________ he often studies in.
| A．that | B．where | C．in which | D．the one |
I regret _________ going on a holiday to France because of the bad weather last week.
| A．having given up | B．to give up |
| C．having given back | D．to give back |
All __________ can be done has been done.
| A．which | B．that | C．/ | D．what |