I'm very tired ________walking for two hours.
| A．of |
| B．to |
| C．from |
| D．by |
On the annual International Volunteers Day, the world _____ the work of millions of people who give their time to help others.
| A．abolishes | B．accompanies | C．acknowledges | D．appeals |
Today’s China is quite different from __________. .
| A．it used to be | B．it would be | C．what it used to be | D．what it would be |
You are ______ to be hit by lightning ______be attacked by a shark, so don’t be frightened by sharks.
| A．more likely 30 times; than | B．30 times as likely; than |
| C．30 times as more likely; as | D．30 times as likely; as |
You will have an accident if you don’t ______, for the road is icy.
| A．make out | B．pick out | C．bring out | D．watch out |
The reason ______ Old French made contributions to Middle English is ______ English borrowed many words from it.
| A．why; because | B．that; because | C．why; that | D．that; that |