问题

There is a police car in front of our neighbor’s house. What do you suppose ______?[ ]

A: did happen
B: has happened
C: is happen
D: has been happened

正确答案是：

同类题型

_____ your sister have a ball or a bat

______ is the weather like today — it’s _____.

Is it strange that Rose should marry Henry?—I _______ you kept it between you and me. [ ]

Theteacher together with the students ________ discussing Reading Skills that________ newly published in America.

_______ I accept that he is not perfect, I do actually like the person