分类：教育/科学-学习帮助
问题：问两道选择题1.—Howdoyouthinkitis_____h 
1.—How do you think  is_____he arrived here? —No more than half a year,I believe.A.when  B.that    C.before    D.since2.Furniture is to the living room______playground equipment is to the playground.A.what    B.thatC.which   D.of which
回答：D A
1. 估计题目应该是：How long do you think it is ...?
It is/has been + a period of time（一段时间）since + 时间状语从句（从句谓语动词用一般过去时）
自从……已有……时间了。
2. A is to B what/as C is to D.
A与B的关系就如同/好像C与D的关系。