高一Unit 5 单元综合测试
I.单项选择
1. The new machine, if ___ properly, will work for at least ten years.
A. use B. using C. being used D. used
2. This made ___ to go on with the difficult experiment.
A. that possible for him B. it impossible for me
C. all of us impossible D. it more possible of you
3. We will start in five minutes. Please get ready ____.
A. as soon as possible B. as possible as we can
C. as quickly as we must D. as much as possible
4. The careless professor always leaves the laboratory _____ all lights still on.
A. with B. and C. but D. when
5. The number of people invited __ fifty, but a number of them ___ absent for different reason.