Question

几道英语选择题，分析原因

1、It's_____ to plant trees on the hill
A a hard work B hard work C work hard D difficult works
2、____ our duty ____ the wild animals in danger
A That's;to protect B It's; to protect
C This is; to protect D That's; protecting
3、The doctor told him to eat the medicine____the right time
A、on B in C at D for
4\If you can't decide which of the two novels to borrow,why don't you take_____
I won't read them this month
A both B all C any D either

Answer 1

1.B
work是不可数名词,所以排除AD，work hard是动词短语，不能作宾语，排除。
2.B
It's + n + to do是固定句型。
3.C
at this time这一次
at that time那一次
at the moment那一刻，这一刻
所以用at。
4.A
如果你不能决定选两本中的哪一本，为什么不两本都拿走。
both表示二者都。而all表示三者或三者以上。any任何一。either两者取一。