一.单项选择（共15小题，每小题1分，计15分）
从A、B、C、D四个选项中选出一个可以填入句中空白处的最佳答案。
1.-You look very tired this morning.What did you do yesterday afternoon?
-I did_________Christmass hopping.
A.alotof B.afewof C.anumberof D.apieceof
一.单项选择（共15小题，每小题1分，计15分）
从A、B、C、D四个选项中选出一个可以填入句中空白处的最佳答案。
1.-You look very tired this morning.What did you do yesterday afternoon?
-I did_________Christmass hopping.
A.alotof B.afewof C.anumberof D.apieceof