By this time tomorrow, I ()over the Atlantic
A. fly
B. am flying
C. will be flying
D. have flown
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Most employees ()to work late on Friday
A. will be hating
B. hate
C. is hating
D. had hated
The study group ()studying German for six months now
A. is
B. has
C. was
D. has been
I like to travel but I ()never gone abroad
A. have
B. having
C. was
D. 什么都不填
I ()go swimming at the pool, but now I do yoga
A. had to
B. was able to
C. might not
D. used to