问题
Before I began this job, I _____ a baby sitter for two years. [ ]
A: have been
B:een B was
C: would be
D: had been
B:een B was
C: would be
D: had been
正确答案是：
同类题型
What did the teacher say—The teacher told us at the Capital Museum on time.
一Guess what! Teresa makes her own clothes.—Wow, she is so_________. I could never do that.
The first edition of the magazine was published in 1960, and has been a best-seller _______ [ ]
________time goes by, Mother’s hair has turned grey and the wrinkles on her face deeper[ ]