I was listening to pop songs while my parents ________ dinner yesterday.
#37912
A
were cooking
B
cooked
C
have cooked
D
had cooked
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— You look scared. What happened?— Well , I _______ along the street ________ the UFO landed.
#40522
A
was walking ; while
B
is walking ; when
C
was walking ; when
D
is walking ; while
During the last 3 years, the students ________ more than 2000 English words.
#38405
A
have learned
B
learned
C
are learning
D
will learn