It is said that the ________ of those buildings being build now belongs to a famous company．

problem

wealth

matter

possession

Home delivery or online shopping, ________ to all, makes it available for us to buy various goods conveniently．

known

knowing

to be known

having known

With the strong economy and unemployment down, beautiful housing ________ to meet demand．

has build

is being built

is building

was built

The environment crisis will not be solved ________ we take measures to stop using virgin(原始)materials．

if

when

after

unless

Now ________ nationwide campaign has been launched in China to encourage people to adopt ________ low-carbin lifestyle．

a; the

a; a

the; the

the; a

That she hadn't kept her ________ on her work resulted in the failure．

head

heart

brain

mind

Jack felt unhappy as they all went outing ________ him．

except

but

without

besides

The police have ________ power to deal with such matters by ________ law．

the; the

不填；不填

不填；the

the；不填

Listen!His family must be quarrelling, ________?

mustn't it

isn't it

aren't they

needn't they

The little girl couldn't work the problem out．She wasn't ________ clever．

that

much

enough

too