求一些英语习题

我从考啦学习网上拷过来的，希望对你有帮助。
考点：时态语态
Granny told the girl the moon ______ in the west.
A. goes down B. went down C. is going down D. was going down
答案是A。
表示客观现实的句子用一般现在时。太阳、月亮的升起降落都是客观事实，都用一般现在时表述。

考点：时态语态
Your hands ______ before meals. They are too dirty.
A. must wash B. can wash C. must be washed D. can be washed
选C. 含有情态动词的被动语态结构为：can/may/must/should be done。主语"your hands"和谓语动词“wash”之间是被动关系，所以排除A、B两项。must用在肯定句中表示强烈的肯定，“一定要...”,can"能...",根据句子意思，答案是C

考点：时态语态
They asked me _______ finish my homework.
A. when I could B. I when would C. When I can D. When could I
答案A.
注意宾语从句的语序与时态。主句是过去时态，宾语从句也应是过去时态，排除C。宾语从句表示疑问，用主动语序表示，排除D。没有B这种句子结构，答案是A

考点：单复数
There ______ milk in the glass.
A. aren't many B. aren't much C. isn't many D. isn't much
答案：D
milk是不可数名词。“much”，“许多”，修饰不可数名词。排除A和C。这里用到“There be...”句型，因主语milk是不可数名词，故其否定式是ther