When the old man _____ towalk back to his house, the sun ____ itself behind the mountain.
A. started;had alreadyhidden
B. had started; had alreadyhidden
C. had started; eas hiding
D. was started; hid?xml:namespace>
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Scientiststhink that the continents ____ always where they ____ today.?xml:namespace>
A. aren’t; are
B. aren’t; were
C. weren’t; are
D. weren’t; were
–If the traffic hadn’t been so heavy, I could havebeen back by 6 o’clock.?xml:namespace>--What a pity! Tina ____here to see you.
A. is
B. was
C. would be
D. has been
The country life he was used to ____ greatlysince 1992.
A. change
B. has changed
C. changing
D. have changed
–Where did youput the car keys??xml:namespace>--Oh, I ____I put them on the chair because the phone rang as I ____ in.
A. remembered; come
B. remembered; was coming
C. remember; come
D. remember; was coming