After driving for 20 miles, he suddenly realized that he in the wrong direction.
A. has been driving
B. had been driving
C. was driving
D. drove
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This time tomorrow we that mountain.
A. shall climb
B. shall be climbing
C. have climbed
D. climb
When he came in, we the problem.
A. were discussing
B. discussed
C. had discussed
D. have been discussed
She ought to stop work; she has a headache because she ______ too long. (2000.1. CET-4)
A. has been reading
B. had read
C. is reading
D. read
Many kinds of wilds animals ______ from the earth.
A. being disappearing
B. being disappeared
C. are disappearing
D. are disappeared
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