E-mail , as well as cellphones, _____an important part in daily communication.
| A．have played | B．play | C．are playing | D．is playing |
The article gives several ______ about why we should build up the harmonious society.
| A．explanations | B．expressions | C．introductions | D．directions |
These two kinds of ways are totally different in nature, and we should not _______ the two.
| A．confuse | B．embarrass | C．disappoint | D．discourage |
Wang Lin behaves well at table. This family tradition has been _____ for generations.
| A．taken down | B．turned around | C．passed down | D．picked up |
The government must be very ______ about setting a policy, making no decision until they are quite sure it is the right one.
| A．particular | B．concerned | C．cautious | D．certain |
The president said that it was a great honor for him ______ his country in the past two weeks.
| A．to visit | B．to be visiting | C．to have visited | D．to have been visited |