His singing career began to ______ in the late 1990s.
| A．get off | B．take off |
| C．put off | D．set off |
.I was so busy that I couldn’t ____ a holiday this summer.
| A．share | B．support | C．go | D．afford |
“ We can’t go out in such bad weather,” said Susan, ___ out of the window.
| A．looked | B．to look | C．having looked | D．looking |
-- Do you think it will do us good or harm?
--- _____. Let’s beg for God’s help.
| A．It’s hard to say | B．There is no doubt |
| C．None of your business | D．It doesn’t matter |
-- Have you known each other for long?
--- No, not very long, ____ we started to study at the college.
| A．when | B．since | C．after | D．before |
The chair looks rather hard, but in fact it is very comfortable ____.
| A．sitting on | B．to sit on | C．sitting | D．to sit |