问题

You’d better begin the preparations now and the most important thing is to check ______ the laboratory can be used for the tests[ ]

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

正确答案是：

同类题型

When dealing with students, teachers are supposed to adopt ______ and caring approaches, as they are unique young individuals of different personalities.

．I’dlike to settle down somewhere ______the climate is mild and the sun shines allyear long．

d you tell me where Mr. Smithlives— Well, he is ______here. He passed awaythree years ago.

Do you know David well——Sure. Wefriendssince ten years ago.

The water in the fish tank should be changed at regular intervals.