21. Susan felt very scared because she had to go to the dentist to have two
teeth__________ .
(A) pulling
(B) to be pulled
(C) pulled
(D) pull
答案:登入後查看
統計: A(7), B(13), C(67), D(3), E(0) #3105209
統計: A(7), B(13), C(67), D(3), E(0) #3105209