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A. two times B. second time C. the second time D. twice

A. were reading B. have read C. will read

【題目】It's 10:30 now. Boys and girls. It's time for us ______ eye______ .
A.to do; exercises
B.to do; exercise
C.doing; exercises
D.doing; exercise

A. on duty B. in business

C. on business D. on show

A. watches, watches B. watch, watches

C. watches, watch D. watched, watch

A. a B. / C. the

A. How often B. How soon

C. How long　 D. How far

A．playing；don’t do so B．playing；not to do so

C．to play；to do so D．to play；don’t do so

—Yes，we do.We all know the black mouse ________ two large round ears.

A. of B. with C. about D. on

—Because they are waiting to watch the boat races.

A. Why B. Where C. How D. Who