These continual _____ in temperature make it impossible to decide what to wear.
| A．alterations | B．vibrations | C．waves | D．fluctuations |
China was cracking down on drunk driving, including fines, 15-day detention, and having licenses ________ for up to 6 months.
| A．set down | B．got off | C．taken away | D．given away |
--Mr. Black, this is our language lab. Would you like to go in and have a look?
--OK.________.
| A．Help yourself | B．This way, please | C．Follow me | D．After you |
-- I ________ to your birthday party last Sunday!
-- Unfortunately, you were on business.
| A．had come | B．came | C．would come | D．would have come |
“I have received a lot of letters of support, all________ me to focus on my music,” said Liu Wei, an armless pianist in “China’s Got Talent” competition.
| A．encouraging | B．encourage | C．to encourage | D．encouraged |
If not _______, you’re allowed to return everything within 10 days for a full refund and no further duties.
| A．to satisfy | B．being satisfied | C．satisfied | D．satisfying |