Alibaba has become China’s largest online commercial company, _____ a profit of 1.47 billion yuan in 2010.
| A．earns | B．earning | C．earned | D．to have earned |
When you read the book, you’d better make a mark _____ you have any questions.
| A．at which | B．at where | C．the place | D．where |
The child tiptoed quietly to the bird. ______ into the forest when he was about to catch it.
| A．Flew it away | B．Away flew it | C．Away it flew | D．Flew away it |
He _______ busy yesterday, or he _______ you with your experiment.
| A．was; had helped | B．was; would have helped |
| C．had been; would have helped | D．were; would have helped |
A teacher of English and class teacher _______ us something about volunteer workers.
| A．are telling | B．is telling | C．are given | D．were given |
It every day so far this month. I can't tell you if it tomorrow.
| A．rained; rains | B．is raining; shall rain |
| C．has been raining; rains | D．has rained; will rain |