We will _____ for excellence in our service.
A. strive
B. start
C. stream
D. strike
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Quality is our best _____ to our customers.
A. comment
B. contest
C. commitment
D. content
Will you please lend me the manual when you ___________?
A. have finished
B. will finish
C. will have finish
D. finishing
Eighty percent of the students _________ from Japan.
A. comes
B. come
C. are coming
D. is coming
We _________ for an hour when the bus finally came.
A. waited
B. have waiting
C. have been waiting
D. had been waiting
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