It is doubtful______the work can be completed on time.

admin2015-06-27 35

问题 It is doubtful______the work can be completed on time.

选项 A、if
B、why
C、that
D、when

答案A

解析考查主语从句。难点在doubtful的用法。在肯定句中，doubtful之后的主语从句的引导词需使用连词whether或if.在否定句中，引导词需用that。

转载请注明原文地址:https://kaotiyun.com/show/5mXK777K

专业英语四级

相关试题推荐

随机试题

最新回复(0)