Our special thanks to go thousands of volunteers, without ____tireless work, none of this would be possible.
| A．which | B．whom | C．whose | D．that |
I think he is __________ to win, but I’m not sure.
| A．possible | B．likely | C．impossible | D．certain |
As we know, the rose _____________ England.
| A．represent | B．represents | C．express | D．suggest |
You should be __________ with what you have.
| A．satisfy | B．content | C．need | D．meet |
---What made him so upset?
-----_________
| A．Failing in the test | B．He failed in the test |
| C．Because he failed in the test | D．To fail in the test. |
31. Americans eat _______________ vegetables per person today as they did in 1910.
| A．more than twice | B．as twice as many | C．twice as many as | D．more than twice as many |