This is a very interesting book．I’ll buy it, ________．

no matter how it may cost

how may it cost

how much may it cost

however much it may cost

For all these years I have been working for others．I’m hoping I’ll ________ my own business someday．

turn up

fix up

set up

make up

After he retired from office, Rogers ________ painting for a while, but soon lost interest．

took up

saved up

kept up

drew up

We thought there were 35 students in the dining hall, ________, in fact, there were 40．

while

whether

what

which

The telephone ________ four times in the last hour, and each time it ________ for my roommate．

has rung; was

has been ringing; was

had rung; was

rang; has been

When their first child was born they ________ for 3 years．

had married

got married

had been married

had got married

The new dictionaries are very useful．They ________ well and ________ already．

sell; have been sold out

sold; had sold out

sell; sell out

are sold; have been sold out

Proper first aid can save a seriously injured person, especially when he is bleeding heavily or ________．

has poisoned

has been poisoned

was poisoned

is poisoning

The little boy is dirty from head to foot because he ________ in the mud all morning．

has played

is playing

has been playing

was playing

The price ________, but I doubt whether it will remain so．

went down

will go down

has gone down

was going down