科目： 来源：gzyy 题型：
| The school rules state that no child shall be allowed out of the school during the day, _____ accompanied by an adult. |
A. once B. when C. if D. unless |
科目： 来源：gzyy 题型：
| Sam _____ some knowledge of the computer just by watching others working on it. |
A. brought up B. looked up C. picked up D. set up |
科目： 来源：gzyy 题型：
| The doctor thought _____ would be good for you to have a holiday. |
A. this B. that C. one D. it |
科目： 来源：gzyy 题型：
| My mother opened the drawer to _____ the knives and spoons. |
A. put away B. put up C. put on D. put together |
科目： 来源：gzyy 题型：
| I have a lot of readings _____ before the end of this term. |
A. completing B. to complete C. completed D. being completed |
科目： 来源：gzyy 题型：
| Tom was about to close the window _____ his attention was caught by a bird. |
A. when B. if C. and D. till |
科目： 来源：gzyy 题型：
| I was reading attentively in my own room _____ suddenly he knocked at the door. |
A. when B. while C. then D. as |
科目： 来源：gzyy 题型：
| He has five _____, and they are all doctors working in the same hospital. |
A. sons- in-laws B. son-in-laws C. sons-in-law D. son in laws |
科目： 来源：gzyy 题型：
| He has been working so hard. _____ he could answer such a difficult question. |
A. No wander B. No wonder C. why D. because |
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