19.It is ________ who ____________ wrong.
| A．me; me | B．me; is | C．I; am | D．I; is |
— bargaining is so interesting?
—Sometimes it is a test to see who can stand their ground for the longest.
| A．What is it that | B．Why is it that |
| C．What it is that | D．Why it is that |
I’ve already forgotten you bought the dictionary.
| A．that it was when | B．that was it when |
| C．when was it that | D．when it was that |
It is he frequently returns home late makes his parents concerned about him.
| A．because; that | B．that; that |
| C．不填; that | D．what; that |
(2013·马鞍山模拟)It was not until midnight they reached the camp site.
| A．that | B．when | C．while | D．as |
, you should keep it a secret; or you will ruin our plan.
| A．If asking | B．If asked |
| C．If to ask | D．If being asking |