Class is over. It’s time ______ you ______ a rest.
| A．to; to have | B．for; have |
| C．to; have | D．for; to have |
—How old is Mary？
—________．We had a special party for her________birthday yesterday．
A．Twenty；twentyth
B．Twenty；twentieth
C．Twenties；twentieth
（安徽）Rick has learned a lot about Chinese culture________he came to China．
| A．before |
| B．when |
| C．until |
| D．since |
Miss Lin________a lot of work for the poor area since 2010．
| A．does |
| B．did |
| C．has done |
| D．will do |
—________have you been in Chongqing？
—For five years．
| A．How many |
| B．How soon |
| C．How much |
| D．How long |
They dug up the road and________a box hidden under it．
| A．find |
| B．found out |
| C．discovered |
| D．invented |