---Is Bob still performing?
---I’m afraid not. He is said ___ the stage already as he has become an official.
| A．to have left | B．to leave | C．to have been left | D．to be left |
Nobody but doctors or nurses and thoseby Dr. Longmanto enter the patient’s room.
| A．invited; are allowed | B．are invited; are allowed |
| C．are invited; is allowed | D．invited; is allowed |
—Peter, you take down the result of the experiment, ?
—Oh, no problem, but I need to find my pen and notebook first.
| A．will you | B．shall you | C．don’t you | D．do you |
To be honest, I wonder why you are so late.
—Sorry, I ___ that you were waiting for me.
| A．don’t realize | B．haven’t realized | C．won’t realize | D．didn’t realize |
It is very important for us to employ a word or a phrase according to the in language learning.
| A．situation | B．expression | C．comprehension | D．translation |
It was not until dark ___ he was aware of ___ he thought was the correct way to solve the problem.
| A．when; what | B．that; that | C．that; what | D．when; that |