6.______ arriving at the meeting room, Tina discovered that she had left the sample products in her office.
A. By
B. Through
C. On
D. In
查看答案
8.Miss Smith's assistant enjoys ______ for her although she treats him very strictly.
A. work
B. working
C. to work
D. worked
9.Tom might not have made such a serious mistake if he ______ your advice.
A. followed
B. follows
C. had followed
D. has followed
10.Jack said the construction of the subway would be completed in October, ______ is a great surprise to us.
A. this
B. what
C. that
D. which
11.Have you ever heard about the meeting ______ tomorrow?
A. held
B. to be held
C. being held
D. holding