文法測驗

Find out the incorrect sentence. (選出錯誤者)

 (A) Tom’s friends could have helped him by lending him some money, but they didn’t.

 (B) David failed two subjects last year.He should have fooled around so much.

 (C) Jack’s grandfather looked at him as if he had never seen his grandson before.

 (D) Look at the ground.It is all wet.It must have rained before we got here.