Question

_____ a certain doubt among the workers as to whether he could finish the task in a short time．

A．It was

B．There had

C．There existed

D．It had

Answer 1

C

There existed为there be句型的变体意为“有”。句意：关于他是否能在短时间内完成这项任务在工人中存在着某种怀疑。