—What color is it?
—__________.
A.It`s orange B.It's an orange C.It`s a black
—Hi, Mary! Is that CD?
—Yes. __________CD is Alan's
A.a; The B.a; A C.an; The
We can see__________ “u" and __________ “r” in “four”.
A.an; an B.a; an C.a; a
一The plane won't take off the thick clouds move away.
一Let's wait patiently for the announcement from the airport.
A.since B.through C.while D.until
_______they are twin brothers, _______they don’t look like each other.
A.Although; / B.Although; but C.But; although
— Miss Li, could you help me ______ this math problem?
—OK. Let me try.
A.work out B.look out
C.care about
