Question

It remains to be seen ________ this plan is practical enough to keep the project going.

A．whether B．how

C．where D．when

 

Answer 1

A

【解析】A 考察名詞性從句。句意：這個計劃是否足夠可行讓這個工程繼續(xù)下去還有待于進(jìn)一步觀察。What引導(dǎo)主語從句，it是形式主語，根據(jù)句中的remains to be seen可知此處是指一種不確定性。故A正確。