No freshman and no graduate student （） to sit in on the forum.
A. are allowed
B. is allowed
C. are approved
D. is approved
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John as well as Jack （） just been back from an important meeting.
A. have
B. has
C. had
D. must have
I would have paid （） for my bike, if the salesman had insisted, because I really wanted it.
A. as much again
B. as much more
C. twice as much
D. much twice
He sat there, doing nothing else （）.
A. but to laugh
B. than laughing
C. than laugh
D. but laughed
I then listened to the boy （） the lesson written on the blackboard.
A. read
B. reading
C. to read
D. having read
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