问题

Your natural hair color begins to fade________you grow older, and in time you grow grey[ ]

A: since
B: when
C: while
D: as

正确答案是：

同类题型

Today, we’ll discuss a number of cases _____beginners of English fail to use the language properly [ ]

When I say two hours, _____ includes time for eating.

Is rice __________in your country, too

Last summer vacation, we many photos when we had a trip to Dalian.

Could you please do the dishes, Lily I’m cleaning the room. — _____.