题目内容
Before he went abroad,he spent as much time as he _____ English.
A. could learning B. learned C. to learn D. could learn
------Is your father a teacher of English in the No.l Middle School?
-------No! But he _________ English there for ten years.
A. has taught B. has been teaching C. taught D. had taught
. He _____ English for ten years by the time he takes the examination.
A. will have been studying B. would have been studying
C. will study D. studied
Before he went abroad he spent as much time as he _____ English.