There is _______ "u" and _______ "s" in

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问题选择题

There is _______ "u" and _______ "s" in the word "useful".[ ]

A．a; an

B．a; a

C．an ; an

D．an; a

答案

答案：A

多项选择题

某企业从日本进口一批冻鱼，欲从大连口岸入境通关后转济南加工，下列表述正确的是（）。

A．企业先到大连检验检疫局报检，取得入境货物通关单

B．取得通关单后，企业可以销售使用

C．货物通关后，企业联系济南检验检疫局施检

D．货物通关后，企业等待济南检验检疫局联系施检

选择题

In 2010, I will try to do better in study, because I don't want my parents _____ me. [ ]

A. to worry about

B. worry about

C. to worry

D. to worried about