Is this the first time you ____Beijing?A.have visited B.would vis_英语解答

Is this the first time you ____Beijing?
A.have visited B.would visit C.visited D.have been visiting
No one can be sure if the car on display fits him or her until he or she ___them
A.tries B.will try C.tried D.have tried
敢问选什么

人气：387 ℃　时间：2020-05-14 13:08:57

解答

1 A it is the first,second,third,etc.time (that)sb. have done sth.为一固定结构,that 从句需用现在完成时.
2 A until 引导的从句中用一般现在时表将来.