---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
推荐题目
Great changes _______ in our country since 1990.
#44952
A
were taken place
B
took place
C
have taken place
D
have been taken place
We know that about seventy percent _____ the earth _____ covered by water.
#44426
A
/; is
B
of; are
C
of; is
D
about; are
---- Our city is developing so fast. ----Yes. Many modern buildings _____ in the city next year.
#44595
A
are built
B
will build
C
will be built
D
will be build
When I heard my baby girl say her first word, my heart was with joy.
#45070
A
filled
B
marked
C
prepared
D
shown