_______they are twin brothers, _______they don’t look like each other.

A.Although; / B.Although; but C.But; although

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

We can see__________ “u" and __________ “r” in “four”.

A.an; an B.a; an C.a; a

—Hi, Mary! Is that CD?

—Yes. __________CD is Alan's

A.a; The B.a; A C.an; The

—What color is it?

—__________.

A.It`s orange B.It's an orange C.It`s a black

—How __________David?

—He is fine.

A.are B.is C.am

—Mike, is __________Helen?

—No. __________ name is Jane.

A.he; His B.she; His C.she; Her

—Is your name Jack Black?

—__________.

A.Yes, I am B.No, I'm not C.Yes, it is

__________is my key and __________are my rulers.

A.This; that B.This; those C.These; those

—Mom, are the __________oranges for me?

—No. This one is for you. Those two are for your dad and me.

A.two B.three C.four