I _____ an old friend of mine while I _____in the street yesterday afternoon.
A. met ... was walking
B. was meeting ... walked
C. was meeting ... was walking
D. met ... walked
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One day when I ____the post office, I _____my uncle.
A. pass ... saw
B. was passing ... saw
C. passed ... was seeing
D. am passing ... am seeing
The student _____to move the bag of rice _____he heard the sound of a motorbike.
A. was running ... when
B. was running ... while
C. runs ... when
D. ran ... while
Mark _____while he _____ up and down.
A. falls ... is jumping
B. fell ... was jumping
C. was falling ... was jumping
D. felt ... was jumping
While she ________ TV in the sitting room, the bell _________.
A. watches ... rings
B. is watched ... rang
C. was watching ... rang
D. watched ... was ringing
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