---How often do I need to feed the birds?---They______ food every day, or they will be hungry.

---How often do I need to feed the birds?---They______ food every day, or they will be hungry.

#44408

must give

mustn’t give

must be given

mustn’t be given

推荐题目

---You see, great people ___________not because they were beautiful. ---Right. They didn’t give up when their lives were difficult.

#44910

remembered

are remembered

have remembered

were remembered

The noisy boy ______stand up by a teacher.

#44682

was made

was made to

made

made to

In many places in China, the old over 90         not only by their family but also by the government.

#44960

is taking good care

are taken good care of

is taking good care of

are taken good care

The beautiful coat ______ by her last month.

#45023

is designed

is designing

was designed

was designing

—What a nice classroom! —It _____ every day.

#44598

is cleaning

has cleaned

must clean

is cleaned

共461题