It is not until we know more about the situation ______ we are able to improve it.
| A．that | B．what | C．when | D．which |
—Why are you crying? Today is your birthday!
—____________. I am so excited with so many friends surrounding me.
| A．Just can’t help it | B．Don’t mention it |
| C．None of your business | D．That’s all right |
Malaysia Airlines Flight 370 ___________ course and turned back toward Kuala Lumpur -- but there were no indications from the pilot that he was doing so.
| A．must have changed | B．could have changed |
| C．might have changed | D．should have changed. |
— 2013 was a successful year for us China.
— ___________, and ________.
| A．So it was; so 2014 will | B．So was it; so 2014 will |
| C．So was it; so will 2014 | D．So it was; so will 2014 |
________at the cafeteria before, Tina didn’t want to eat there again.
| A．Having eaten | B．To eat | C．Eat | D．Eating |
________is it ________has made Peter ________he is today?
| A．What; that; that | B．That; that; what | C．What; what; that | D．What; that; what |