Question

【题目】—How long do you suppose it will be____ Xiamen Railway Station comes into operation?

—Twenty days or so．

A．after B．before C．since D．that

Answer 1

【答案】B

【解析】考查连词，A在……之后；B在……之前，先于；C因为，由于，既然，自……以来；D因为，以至于。本句中句型it will be some time before...过多长时间……才……；do you suppose为插入语，等于do you think.句意：你认为要用多长时间厦门火车站会开始运营？故选B。