---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
- When should I hand in my paper?— Your paper must _ as soon as the bell_ .
#44944
A
hand in; rings
B
hand in; will ring
C
be handed in; will ring
D
be handed in: rings
Newly-born babies ___in hospital.
#44457
A
are taken good care
B
are taken good care of
C
take good care of
D
take good care
Yuan Longping, a great person in China, _____as “father of hybrid rice”
#44978
A
is regarded
B
has regarded
C
is regarding
D
regards
Don’t put off today’s work for tomorrow. I mean , today’s work _____today.
#44892
A
may do
B
must do
C
may be done
D
must be done
--Who _______ the Harry Potter series________ ? -- J.K.Rowling.
#44425
A
did, be written
B
was, written
C
was, written by
D
did, be written by