题目内容

We watched the rock __________ in the pond. ()

A. requested
B. operator
C. customers
D. sink

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The store held a special sale for its regular __________. ()

A. sink
B. services
C. alive
D. customers

He __________ to stay up all night, but he fell asleep. ()

A. automated
B. tried
C. service
D. trying

We needed the __________ of an auto mechanic. ()

A. alive
B. try
C. service
D. services

I called the __________ to see if I could get Aunt Lucy's telephone number. ()

A. request
B. sink
C. services
D. operator

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