In order to catch up with her classmates, _____.
| A．a lot of books were bought by Mary’s mother |
| B．Mary’s father helped her with her lessons |
| C．Mary worked hard at her lessons around the clock |
| D．Mary’s classmates helped her a lot |
--Can Mr. King spare some time for the charity show?
--If he ___, he will try his best to make it.
| A．will be invited | B．is invited |
| C．invites | D．invited |
The librarian told me that I could ___ these magazines for three days.
| A．borrow | B．buy |
| C．keep | D．return |
I think you should complain, , of course, you are happy with the situation.
| A．unless | B．however | C．until | D．though |
–_____ did you work out the problem in such a short time? --With Mr. Li’s help.
| A．When | B．Where | C．How | D．Which |
—What would you like, tea or coffee?
—_____, thanks. I just prefer a glass of water.
| A．Both | B． Neither | C．Either | D．All |