Steve hasn't been to the office _____ the last two days.
A. in
B. since
C. at
D. for
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I’m sorry, but I have a question to _________ you.
A. speak
B. tell
C. ask
D. change
There is no doubt ______he is a good employee.
A. which
B. who
C. that
D. what
Don't _______ me to help you if you are not working hard.
A. guess
B. think
C. plan
D. expect
_________his lecture is short, it gives us a clear picture of the new program.
A. If
Because
C. Although
D. when