Why not your teacher for help when you can’t finish it by yourself?
- A.ask; write
- B.to ask; writing
- C.ask; writing
- D.asking; write
答案
正确答案:C
知识点:非谓语动词

Why not do sth?或Why don’t you do sth?意思是“为什么不……呢”,所以第一空填ask。finish doing sth.表示“完成某事”,所以第二空填writing。所以答案选C。

略
