Question

Why don’t you _____ your teacher for help when you can’t finish _____ it by yourself ?

A．a(chǎn)sk; write

B．to ask; writing

C．a(chǎn)sk; writing

D．a(chǎn)sking; write

Answer 1

C

why don’t you do sth是固定句型結(jié)構(gòu)意思是你問什么不…表示一種建議；finish doing sth表示完成某事也是固定句型結(jié)構(gòu)。