1、My friend ( )the answer to the question.A is know B know C

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1、My friend ( )the answer to the question.A is know B know C knowing D knows
2、I think I will buy there shoes.( )really well.
A They fit B They have fit C They are fitting D They were fitting
3、Don't worry.I( )be here to help you.
A not B shall C am not D won't
4、Mary ( )tennis once or twice a week.
A is playing usually B usually playing C usually plays D plays usually

1、D,主语My friend是第三人称单数,动词应该要用三单式,其他选项A和C现在进行时的结构不对,B不是三单式
2、A
3、B,根据句意应该是他会留下来帮忙,其余选项都是不会留下来,故选B
4、C,主语Mary第三人称单数,动词用三单式,usually放前面是习惯用法

1、My friend ( )the answer to the question.A is know B know C I don’t know the answer _____ the question.A.to B.of C.at D. （）19、Do you know the answer ______the question?A.to B.of C. Do you know the answer _____this question?A.to B.of C.with D -Does （） know the answer to the question?-Me.A.somebody B.an Do you know the answer ______the question A.about B.of C.toD This is my answer to the question.A the B / C a D an 应该选什么啊快 ——the answer,you can ask your teacher.A.Know B.To know C.Kno Does _____know the Does____ know the answer to the question? Kitty __________(not know) the answer to the question. Nobody ____ (know) the answer to the question. I don't know the answer to the question.