they are sure that they can solve all the problems( )three hours _英语解答

they are sure that they can solve all the problems( )three hours A,with B,on C,in D,for

人气：398 ℃　时间：2020-04-08 02:04:49

解答

C
根据语境是表示将来的行为,而“in+时间”在将来时表示“一段时间之后”,符合句意.
他们确信,他们能在三小时后解决所有问题.