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15. My sister rarely
a. watches
16. Listen! A jet
c. has watched
b. is flying
d. flew
17. We were watching a movie about aliens while
we
pepperoni pizza.
19. I
a. was flying
c. has flown
18. Martians
22.1
a. ate
c. were eating
a. is visiting
c. has visited
a. haven't seen
c. didn't see
21. Martians always
scary movie
b. is watching
d. was watching
overhead.
any good movies lately.
b. saw
d. don't see
a. are traveling
c. have traveled
b. have eaten
d. are eating
Earth 20 years ago!
b. was visiting
d. visited
a. have attended
c. am attending
in groups of ten.
b. travel
d. were traveling
this school for 5 years..
b. attend
d. was attending