— 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
推荐题目
----- Have you heard of Earth Day ?----Yes . The first Earth Day ______ in 1970 to educate us to protect our planet .
#39398
A
celebrates
B
celebrated
C
is celebrated
D
was celebrated
---I came to your office yesterday morning, but nobody was in.--- Sorry, we _______ a meeting .
#36352
A
have had
B
are having
C
were having
D
had
--"How long has the movie ?--About ten minutes. You haven't missed too much.
#36267
A
started
B
finished
C
been on
D
been over
People pay more attention to protecting environment. There _________ less pollution in the future.
#36860
A
will have
B
will be
C
is going to have
D
are going to be
