一I heard that you got an A in the chemistry exam．Well done!
一Thanks，I know that you a good job as well．
| A．shouId have done | B．need have done |
| C．must have done | D．could have done |
I would appreciate ______, to be frank, if the goods could be delivered as soon as possible．
| A．you | B．that | C．it | D．myself |
____ each other for years, they talked almost the whole night and had a wonderful time.
| A．Not having seen | B．Having not seen | C．Not seen | D．Not to see |
Franklin's ability to learn from observations and experience ____ greatly to his success in public life.
| A．owned | B．contributed | C．attached | D．related |
—It’s so hot. What about getting a drink?
—Good idea. It’s my___ .
| A．treat | B．charge | C．trade | D．cost |
Andrew wanted to find another boy to be his best friend, but Annie told him ___.
| A．not to | B．not to do | C．not do it | D．do not to |