单项选择题

They kept me () for more than an hour.

A. waits
B. wait
C. waited
D. waiting

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单项选择题

In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet.（）

A.disappear
B.ear
C.fear
D.pear

单项选择题

We saw many mountains () with snow.

A. covered
B. cover
C. covering
D. covers

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