15．He usually goes to a movie _______(two)a week．

14．What are you __________ (plan)to do today?　　

13．He wants to go bike ____________ (ride)this weekend．

12．An elephant is much ____________ (big)than a panda．

11．What about ________ (go)swimming?　　

10．Jim and Kate are twins，but there are some _________　 between them(不同)．

B．根据句意用所给单词的正确形式填空。

9．In many ________ countries，Chinese food is very popular．(西方)

8．He often _________ a bus to school．(乘)

7．I have to go to see a __________(牙医)．I have a toothache．

6．Thank you for your　 _________(邀请)．