问题描述:
PLEASE COME IN
1-Why I couldn't get you on the phone this morning.
-we __tennis in the yard when you phoned me.
A must be playing B must have been playing
2-do you still remember when we went to the Great Wall?
-I can't remember it well,but __it have been sometime last May
a should b could
嘎,两题都应该是B,但为什么呀
1ses340403说------B,(表示过去正在发生的事) A不能表示过去正在发生的事吗?
1-Why I couldn't get you on the phone this morning.
-we __tennis in the yard when you phoned me.
A must be playing B must have been playing
2-do you still remember when we went to the Great Wall?
-I can't remember it well,but __it have been sometime last May
a should b could
嘎,两题都应该是B,但为什么呀
1ses340403说------B,(表示过去正在发生的事) A不能表示过去正在发生的事吗?
问题解答:
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