问题

The fact that smoking is harmful to health is__________ most smokers admit

A:what
B:whether
C:where
D:that

正确答案是：

同类题型

Jim at a middle school.

Is your name Jack– _______.

________ is your friend —-He is a worker .

“The workers are working on the farm now.” The main structure of the sentence is .

You didn’t hear us come back last night.That’s good. We tried ______ noisy.