Theyshould theserulesattheairport. ( )A．toobeyB．obeyC．obeyedD．obeys_刷题宝

题干

They should these rules at the airport. ( )

A．to obey

B．obey

C．obeyed

D．obeys

上一题下一题 0.99难度选择题更新时间:2019-01-26 08:05:20

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Read and choose（在括号内写上相应单词的编号）：

A．fly

B．can

C．ride

D．rope

E．I
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