单项选择 适中0.65 引用7 组卷304
Doctors in the town are using the books ______their studies and treat patients.
| A．continue | B．to continue | C．continuing | D．continues |
2018九年级·江苏苏州·专题练习
类题推荐
Kelly feels very sleepy now. She regrets _____ all night.
| A．stayed up | B．to staying up |
| C．staying up | D．to stay up |
The maths problem is_______ hard for me _______.
| A．so；can't work out | B．enough；to work out |
| C．too；to work out | D．too；to work it out |
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