的比赛I think Ann must () on duty today.A.be B.is C.are D.am
I think Ann must____on duty today A.be B.is C.are D.am
I think your Chinese ___ very good.A.is B.am C.are D.be
Who is ( )duty I am.A.in B.on c.of d.for
——everyone here today?A.Be B.Are C.Is D.Am
No news____in new clothes today.A.is B.are C.am D.be
Is Li Lei ____ duty today?A、like B、after C、at D、on
I am _______ duty this week A.in B.at C.on D.for
i am __ duty a.on b.in c.at d.to
i think the boy ( )quiet in class.A,is B,am C,bring D,be
Here ____pencils and a book on the desk.a.is b.are c.am d.be
Some broccoli ____ on the table .A am B are C be D is
some ice-cream (A.be B.is C.am D.are)on the table0