这2道英语题为什么选这个?
问题描述：
这2道英语题为什么选这个?
You___A_____him so closely;you should have kept your distance.
A shouldn't have been following B.shouldn't follow
C mustn't follow D couldn't have been following
Not until the game had begin__D____ at the sports ground.
A had he arrived B would he have arrived
Cshould he have arrived D did he arrive
答
A表示：本不应该跟这他,而事实上却跟着他
第二题要理清事情发生先后,比赛开始 发生在 他到运动场 之前,整个事情发生在过去,一定要用过去式,所以 他到运动场 用过去式；比赛开始 用过去完成时.所以用did