On _________ account must you tell him about our plans．

one

all

an

no

He can’t run very fast on account _________ his asthma(哮喘)．

for

of

at

by

This innovation has played an important part _________ the company’s success．

in

of

for

by

Sarah _________ me in contact with an expert．

set

got

put

brought

We stay _________ contact _________ each other _________ telephone．

on; for; on

in; to; from

on; by; with

in; with; by

As far as I _________, the whole idea is crazy．

am concerning

am concerned

concern

concerned

There is growing concern _________ the effects of pollution on health．

to

for

about

by

I need to _________ some of these old baby clothes．Do you want some?

give off

give back

give up

give away

They searched for the ball for a while, but eventually _________ and went home．

gave in

gave up

gave away

gave off

I forgot to _________ my make-up last night．

take place

take back

take on

take off