Question

1、I can't find my pen.Let me ( ).a.go and ask her b.go and a

Answer 1

1、I can't find my pen.Let me ( a.go and ask her ).

在动词ask后用人称代词she的宾格her.

2、Tom is a good student.He (C.is good at) math.

be good at ,擅长于.

3、-Who [teaches] you maths last year?-Mr.Li [does].

主语是第三人称单数,动词用三单形式.