While he (hold) ……………. the old vase, he (drop)………… it.
A.was holding – dropped
B.held – dropped
C.was holding – was dropping
D.held – was dropping

You (take) ________ a nap when he (call)_________?
A.Were you taking – called
B.Was you taking – was calling
C.Did you take – called
D.Did you take – was calling

Who you (talk)___________ to in the party last night when I (ask) __________you for a cigarette?
A.were you talking – asked
B.did you talk – asked
C.were you talking – was asking
D.you were talking - asked

Nam (buy) _________ several records last week.
A.was buying
B.buying
C.bought
D.were buying

They (finish) _________ their dinner half an hour ago.
A.was finishing
B. finishing
C.are finishing
D.finished

They (come) ………………….. here a month ago.
A.came
B.come
C.was coming
D.were coming

They (visit)________ Cau Giay Park this time last month.
A.was visiting
B.visit
C.visited
D.were visiting

I (play) __________ football when she (call) _________ me.
A.was playing – was calling
B.was playing – called
C.played – called
D.played – was calling

You (study) ___________ Math at 5 p.m. yesterday?
A.Did you study
B.Was you studying
C.Were you studying
D.You were studying

What she (do) ________ while her mother (make) ________lunch?
A.was she doing – made
B.was she doing – was making
C.did she do – made
D.did she do – was making