The flowers _______often.
#44458
A
must be water
B
must be watered
C
must watered
D
must water
推荐题目
Old people should ________politely.
#44728
A
be spoken to
B
speak
C
speak to
D
to be spoken
What’s the language                  in Canada?
#44884
A
speaking
B
spoken
C
is spoken
D
to speak
Every year lots of trees ____________ to make our country more beautiful.
#44817
A
is planted
B
was planted
C
are planted
D
were planted
 Young trees____ quite often.
#44612
A
should water
B
should be water
C
should be watered
D
watered