问题

_____ 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

正确答案是：

同类题型

om looked back on the earlydays of their marriage, she wondered how they had managed with ______ money

spoke to him kindly________ him .

th the guide leading the way, thevisitors were able to travel through the forest not by air but _____ foot.

—We’ll go to the party to be held in Qinghai Grand Theater at 8 tonight. Could you join us?—I’m afraid I can’t. I ________ the holiday plan with my friends.

－Tom, you read it in Chinese－Sorry, I can’t.