A lot of trees ______ on the hill yesterday.
#44945
A
are planted
B
will be planted
C
have been planted
D
were planted
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The earth is our home. It ______________ well.
#44581
A
must be protected
B
should protect
C
need protect
D
need protecting
--Tree Planting Day is coming. Do you plant trees in spring?---Yes, many trees ________ in our city every year.
#44906
A
are planting
B
are planted
C
were planted
D
will plant
---How often do I need to feed the birds?---They______ food every day, or they will be hungry.
#44408
A
must give
B
mustn’t give
C
must be given
D
mustn’t be given
—Excuse me, what’s this for?—It’s a cleaner and it to pick up dirt.
#45057
A
uses
B
is used
C
is using
D
used