问题

A low-carbon（低碳）lifestylehas an effect our daily life.More and more attention has been paid toenergies these days.

A: in; save
B: in; saving
C:on;save
D: on; saving

正确答案是：

同类题型

If he keeps on working so hard, he will sooner or later.

You are late again,Tom?—Sorry,but I got________a heavy traffic jam.[ ]

It’s raining, Kathy. Please ________ an umbrella withyou. — Thanks. I’ll return it to you when I ________next week.

Next week I’ll travel to New Zealand with my parents.—It’s _____ .[ ]

I don’t think easy for us to work out this problem on time.