Plenty of foreign firms _____ factories here.
A. have set up
B. has set up
C. have been set up
D. has been set up
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It is ____ for you to ask something very private in America.
A. good
B. inappropriate
C. thankful
D. grateful
Amy ____ a sick leae this morning, because she ____a bad cold.
A. asks for; has had
B. asks for; had had
C. asked for; has had
D. asked for; had had
Since everyone is here, let's ____ now.
A. get down to discuss
B. get down to discussing
C. getting down to discuss
D. getting down to discussing
How many times do you need to knock before you're permitted to enter into the office?
A. Two
B. Three
C. Four
D. Five
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