______dinner, you must wash your hands. [ ]A. When B. Before C.
题型：同步题难度：来源：
| ______dinner, you must wash your hands. |
| [ ] |
A. When
B. Before
C. After
D. Until |
答案
| B |
举一反三
| Everyday there is news _______ TV and _______ news paper. |
| [ ] |
A. in, on
B. on, in
C. on, at
D. at, in |
| It"s quite cold today. The temperature will fall _______ zero at night. |
| [ ] |
A. down
B. below
C. above
D. over |
| Is it a fine day _______ a walk? |
| [ ] |
A. for
B. to
C. with
D. on |
—Are you free _____ Friday?
—I have nothing _____. |
| [ ] |
A. in, to do
B. on, to do
C. on, do
D. at, to do |
| They walked ____ the garden. |
| [ ] |
A. across
B. through
C. from
D. at |
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