I ____ traveling by air and only on one dangerous occasion have I ever felt so frightened.
A. used to
B. am used to
C. use to
D. are use to
查看答案
It ____ more to live in the city.
A. costs
B. expands
C. spends
D. buys
The patient said that he felt ________ before the operation.
A. uneasy
B. unease
C. uneasily
D. uneased
He didn't go home he finished the work.
A. since
B. if
C. because
D. until
Do you know ten years ago?
A. where does he live
B. where he lives
C. where did he live
D. where he lived