---Hi,Nancy.I didn’t know you had come back.So have you graduated from college?
---Yes.I _______ French for 5 years in Nanjing.
| A．have studied | B．had studied |
| C．am studying | D．studied |
This is the first time I __________ to the capital to attend the celebration ceremony.
| A．came | B．come | C．have come | D．had come |
According to a new study by a British university, learning __________ second language can lead to __________ increase in your brain power.
| A．a; the | B．a; an | C．不填; the | D．the; an |
--- Did he break it accidentally?
--- No, __________.
| A．with purpose | B．by chance | C．on purpose | D．by mistake |
--I went to work on foot yesterday, though it was raining cats and dogs.
---You __________ a bus. You were likely to get a cold.
| A．must have taken | B．would take |
| C．could take | D．should have taken |
It was on January, 12th, 2010 __________ a terrible earthquake struck the capital of HaiDi.
| A．when | B．before | C．which | D．that |