You could ________ this a really nice room if you bought a new carpet.

My classmates and I are working much _______ than before, because we’ll take an important exam soon.

Which do you prefer to live in, the city or the countryside ——Of course in the countryside. The air is much _________.

The Somali robbers’ frequent attacks on the sea urged the United Nations to__________ allnations to take immediateaction..[ ]

English isn’t as _______ as Chinese.—Maybe, perhaps it’s just because Chinese is your native language(母语).