Visitors not to touch the exhibits.
| A．will request | B．request |
| C．are requested | D．are requesting |
I remember ________ the job, but I forget the exact amount.
| A．to be paid for | B．being paid for |
| C．to be paid back | D．being paid back |
Fred seems very clear. His ideas led to _________ a pay raise.
| A．his awarded | B．his being awarded |
| C．him to award | D．him to be awarded |
--- How did you sleep last night?
--- Like a log. Never slept ________.
| A．well | B．worse | C．badly | D．better |
Doing your homework is a sure way to improve your test scores, and this is especially true ________ it comes to classroom tests.
| A．before | B．as | C．since | D．when |
________ there, the southwest desert contains a remarkable variety of plants.
| A．Rarely as it rains | B．Sometimes it rains |
| C．It rarely rains | D．Although rarely rains |