It is _________ severe burn, and you’d better hurry to hospital for _________ treatment．

a; the

a; a

the; a

a;/

It has been announced that it won’t be long _________ our country _________ an unmanned spaceship to explore the moon．

before; sends up

until; sends up

since; sends up

before; will sends up

I don’t think George is the right person to _________ the plan．

carry out

set out

put out

bring out

Though _________ money, his parents managed to send him to university．

lacked

lacking of

lacking

lacked in

It is _________ my mother taught _________ I study now．

where; where

where; that

there; where

that; there

David said that it was because of his strong interest in literature _________ he chose the course．

that

what

why

how

It was not until she got home _________ Jennifer realized she had lost her keys．

when

that

where

before

When Jason failed to pay his bill, the network company _________ his Internet connection．

cut off

cut back

cut short

cut down

No matter how frequently _________, the works of Beethoven still attract people all over the world．

performed

performing

to be performed

being performed

Having been ill in bed for nearly a month, he had a hard time _________ the exam．

pass

to pass

passed

passing