问题
Many a professor__________looking forward to visiting Germany now.Many scientists__________studied animals and plants in the last two years.
A:is; have
B:is; has
C:are; have
D:is; are
B:is; has
C:are; have
D:is; are
正确答案是：
同类题型
We’re going for a picnic tomorrow. I _______ whether Jack can come.
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If he shouldn’t have been so ____ about his food, he would be healthier now.
Could I keep this book for another week—Of course you .
Tom, wait a minute— What for? — Take an umbrella _____ it rains