The policeman asked the child _____ cross the street _____ the traffic lights tu
题型：同步题难度：来源：
| The policeman asked the child _____ cross the street _____ the traffic lights turned green. |
| [ ] |
A. not, when
B. don"t, before
C. not to, until
D. not, until |
答案
| C |
举一反三
| We have worked for three hours. Now let"s stop _____ a rest. |
| [ ] |
A. had
B. have
C. to have
D. having |
| What are you going _____ when you grow up? |
| [ ] |
A. be
B. to be
C. do
D. does |
| He was too old ___ by himself. |
| [ ] |
A. walk
B. walking
C. to walk
D. not to walk |
—I forget ______ the window when I left.
—It doesn’t matter. Let me help you. |
| [ ] |
A. close
B. closing
C. to close
D. closed |
| I"m tired. Let"s stop _ a break. |
| [ ] |
A. have
B. to have
C. having
D. has |
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