问题
How was your weekend, Rose?–Awful! This was the first time I ________ alone at home, bored to death.
A:had left
B:had been left
C:have been left
D:have been leaving
B:had been left
C:have been left
D:have been leaving
正确答案是：
同类题型
_________ volunteers will give out leaflets to ask people to protect the wetlands.
Oh, Mrs. Black, your wallet looks nice, is it new?—No, I ________ it for two years.
__________ will you be in Shanghai?-About three weeks.[ ]
The girl is vey . She can’t speak to foreigners in English.
This was a true story and it happened _____ the morning of April 10. [ ]