(B)16.—What's that,Grace?
—It's ____ orange but ____ orange is green.
C.a; a D.a; the
(D)17.____ to our middle school!
C.Fine D.Welcome
(D)18.You can ____ your mother ____ 185987612@qq.com.
C.ask; for D.email; at
(C)19.—Are they your si sters?
—No.____ is my sister.____ are my friends.
A.This; This B.These; These
C.This; These D.These; This
(A)20.—Excuse me.Is this ____ schoolbag?
—No,____ is in the classroom.
A.your; mine B.yours; mine
C.your; my D.yours; my
(B)21.—What color are the hats?
D.Yes,they're green
(B)22.—____.Is this your mobile phone?
C.Hello D.Hi
(D)23.Lucy is a new student in our class.Please look after(照顾) ____.
C.it D.her
(C)24.—____ are the two brothers?
—They are ____ the classroom.
C.Where; in D.Who; in
(B)25.—Is Mary your sister?
C.Yes,he is D.Yes,she does