Question

【题目】While we are very interested in Realcine,we will still need much more information we can make a decision to use it.

A. if B. when

C. as D. before

Answer 1

【答案】D

【解析】句意：虽然我们对Realcine很感兴趣，在我们可以决定用它之前我们还需要更多的信息。此题考察连词的辨析，if如果；when当...的时候；as因此；before在...之前。故选D。