The maths problem is very easy, _____ I don’t think all of you can work it out.

Our school is not very big ________ it’s very beautiful.

Although he is really heavy,   he still runs fast.

_____ Lily ______Lucy will go with you because one of them must stay
at home.
A. Neither; nor          B. Either…or      C. Both; and

You won’t pass the English exam ___________ you study hard.
A. if                B. so            C. unless

_________ the one-child policy, now most families have only one child.
A. Because      B. Because of       C. Thanks for

The city has improved a lot _________ I came here a few years ago.
A. since         B. for            C. when

Little Kate went to the concert ________ it rained heavily yesterday.

Money is important _____ it’s not the only important thing in our life.

Many people believe we will face environmental disasters _________ we completely change the way we live.