问题

The officer demanded that such things ________ fromhappening again.

A:Having not hear from
B:Not having heard from
C:Not hearing from
D:were prevented

正确答案是：

同类题型

On New Year’s Eve, many people get together to for the coming year.

Where is my raincoat—You ______ take it. It’s quite sunny today.

The more you learn , _______.

Sandy said that she _______ a cold for a week.

.—-Look at the dark clouds outside.please take the umbrella with you.—