They said that they ______ a wonderful time in Beijing and they hoped to be there again.
| A．had | B．would have |
| C．would have had | D．could have |
When I said someone cheated in the English exam, I ______ you.
| A．wasn’t referring to | B．had referred to | C．hasn’t referred to | D．will refer to |
The road is covered with ice. I can’t understand they insist on going by bike.
| A．why | B．when | C．how | D．whether |
______ the employees’ working efficiency, the supervisor will allow them to have a coffee
break.
| A．Improving | B．To improve | C．Having improved | D．Improved |
As she is looking forward to ______ from me, please remember ______ this letter on your way to school.
| A．hear; post | B．hearing; to post | C．be heard; posting | D．be hearing; to posting |
—May I smoke here?—If you ______, choose a seat in the smoking section.
| A．should | B．could | C．may | D．must |