I won’t go to Mary’s party unless my best friend Jack ______ .
A. will invite B. is invited C. Invites
—_____ the population of the U.S.A. in 2005?
—It _____ about 296 million.
A. What is; isB. What was; was
C. How many is; was D. How many was; is
The population of Shanghai is larger than _____ of Shenyang.
| A．that | B．it | C．one | D．this |
—Have you seen my brother?
—Yes. I _____ him in the library five minutes ago.
| A．met | B．have met | C．meet | D．have been met |
—_____ my daughter is only ten years old, she knows a lot.
—What a clever girl!
| A．Because | B．Whether | C．Though | D．So |
The family was _____ poor _____ they couldn’t buy a TV set.
| A．so ; that | B．not; until | C．not ; but | D．so ; but |