----How about the pollution in the countryside?
--- Luckily, it's not as serious as _______ in the big cities.
| A．that | B．it | C．one | D．Those |
It’s well-known that learning English well _____ time and efforts.
A.requires B.wastes C.takes
Do more exercise, _____ you’ll have a strong body.
A./ B.or C.and
Look! ______ sweet smile the little girl has!
A.How B.What a C.What
I don’t like TV series ______ it’s boring.
A.but B.and C.because
–I usually go hiking with my friends.
-- ____do I.
A.Nor B.So C.Neither