I won’t tell the student the answer to the math problem until he ____on it for more than an hour.
| A．has been working |
| B．will have worked |
| C．will have been working |
| D．had worked |
He devoted himself entirely to his research into viruses and it earned him a good _________in his field.
| A．impression | B．attraction | C．contribution | D．reputation |
Hannah was busy with work then but she still tried her best to some time from her tight schedule to visit her mother.
| A．cut out | B．squeeze out | C．leave out | D．dig out |
Sometimes we should roles so that we can understand each other’s difficulties, thus promoting our cooperation.
| A．occupy | B．imitate | C．assess | D．switch |
After the doctor told her everything, Jenny was in a as to whether to tell her friends the truth about her condition or not.
| A．commitment | B．dilemma | C．panic | D．judgment |
–We should use methods to deal with different incidents. You know, anything can happen in that situation.
–I got it. Thank you for reminding me.
| A．flexible | B．typical | C．positive | D．specific |