Keep in __that all people are different and some may progress faster than others. A．head

______too much to do, they have to keep themselves busy all day long.

A．Having

B．Have

C．Had

D．Being

A.to laugh

B.laugh

C.laughing

D.laughed

Drinking only a cup of coffee will keep me awake all night.（英译汉)

or your vigilance.

Some bosses dislike (to allow) people (to share) their responsibilities; they keep (all) important matters (tightly) in their own hands.

A．to allow

B．to share

C．all

D．tightly

If the CDC's map turns all red, it means

A．they keep good record of the influenza eases.

B．Philip Polgreen and his colleagues are successful.

C．there is no cases of influenza.

D．there is a wide outbreak of influenza.

In order to keep track of the hacker, ______.

A．the telephone company cut all the telephone lines

B．the police stored false information in Stoll' s computer system

C．Stoll told the police everything he knew

D．Stoll spent lots of time and efforts

A.come up with

B.put up with

C.catch up with

D.keep up with

eone they talk with.

A．distance

B．scope

C．range

D．boundary

Any parents should place considerable emphasis on their children to keep the balance between play and study.As an old saying goes: All work and no play makes Jack a dull boy.（英译中)