试举出四种以上的机构能够实现间歇运动?并选择其中的一种分析其组成结构和工作特点?
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1.Last week, I until midnight every night.
A. work
B. worked
C. was working
D. have worked
2.The play tour around the country.
A. shall
B. will
C. is going to
D. go to
3. I see my friend off this afternoon.
A. shall
B. will
C. am going to
D. go to
4. There will be a day when the people of the whole country a happy life.
A. live
B. will live
C. will have lived
D. are living