The entrance exam is only fifteen days away from now．You will fail the exam ________ you study hard from now on．

if

as soon as

unless

although

Jack found ________ hard to get along with the other boys in his class．

it

that

this

those

I have ________ to tell you．Please listen to me．

important something

something important

important anything

anything important

Tom is sad．Everyone is trying to ________．

cheer him up

pick him up

dress him up

call him up

Sandy's family can't afford ________ a new house at present．

to buy

buy

buying

buys

Look at the skirt．I bought it for my daughter ________ Children's Day．

in

on

at

to

This is an empty bottle．Could you give me ________ full one?

a

an

the

/

The number of people invited ________ fifty, but a number of them ________ absent(缺席)for different reasons．

were; was

was; was

was; were

were; were

I will never forget the days ________ we spent with our friends long ago．

when

which

what

where

There ________ great changes in our hometown in the last few years．

have had

have been

were

has been