----- 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
推荐题目
The new computers ______ to the village school. Do you know?—Yes. I heard of it.
#36232
A
gave
B
give
C
was given
D
were given
Mr. Green, a famous writer, ____________ our school next week.
#38983
A
visited
B
visits
C
was visiting
D
will visit
--- Do you know if Kitty ______ shopping this afternoon?--- I’m not sure. But if she , I will let you know.
#37591
A
goes, will go
B
goes, goes
C
will go, goes
D
will go, will go
Hurry up! Once the concert starts, nobody _______ to enter the concert hall.
#36280
A
allows
B
allowed
C
is allowed
D
is allowing
What ________ if there ______ no water or air on the earth?
#39823
A
happen, is
B
will happen, is
C
will happen, will be
D
happen ,are