问题
I’m glad you’ve come back from the United States. Please tell me how long you ____there.
A:have stayed
B:had stayed
C:have been staying
D:stayed;
B:had stayed
C:have been staying
D:stayed;
正确答案是：
同类题型
What do you think of his opinion—No one has given me ___________ piece of advice.
There is a saying that acting before thinking always _________ failure.
Since you are new here, I’ll let Jack show you the community.
TheGreatWallofChinais_______wallintheworld.
It was wrong of you to fromall your friends who helped you when you were in trouble．