题目内容

The pumpkin was known in North America and South America 5,000 years ago but it _______ in North America for over 8,000 years according to some researchers.

A. may have been grown
B. will have been grown
C. would have been grown
D. should have been grown

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Joe is always wearing _______ shoes because his feet are in different sizes and he has to go to a special shoe store.

A. worn-out
B. soft
C. mismatched
D. polished

This train was built in 1923 and when it ended its working life in 1960, it _______ nearly two million miles.

A. traveled
B. has traveled
C. had traveled
D. had been travelling

“I’m so sorry,” he said, with some ________, “I suppose I should have come earlier.”

A. charity
B. anticipation
C. confidence
D. embarrassment

It is not that colorful sunshine, loud music and exciting games could attract hundreds of visitors to charity fun fairs, but _______ warm-hearted people were willing to help the victims in poverty-stricken areas.

A. because
B. as
C. since
D. that