It's important ________ the piano well．

of him to play

for him to play

of him playing

for him playing

This kind of food ________ cool, clean and dry according to the instruction．

should be carried

must be put

should be placed

must be kept

－Have you mended your shoes, Bob?

－Yes, I ________ them twenty minutes ago．

have mended

mend

had mended

mended

With the help of the Internet, news can ________ every corner of the world．

arrive

reach

go

get

the

a

an

/

It is ________ nice of you to say so．

truly

true

really

real

The experts think that India's population may be ________ than China's ________ 2020．

much; by

more; in

larger; by

larger; on

It was snowing hard ________ we had to stay at home and watch TV．

that

so

but

because

________ a player, I'm looking forward ________ the 2008 Olympic Games．

For; at

As; to

With; for

Of; to

Heilongjiang is in the ________ of China．

northeast

northeastern

northwest

northwestern