．No one knows exactly when our ancestors started talking，but new evidence suggests _______might have happened a long time ago．
#16908
A
which
B
what
C
it
D
they
推荐题目
－Dad, can I buy _______ of these two T-shirts, they are really cool.－I’m afraid you can’t. You can only have one of them.
#57412
A
both
B
either
C
neither
D
all
--- Excuse me, I want to withdraw some money, but I can’t find an ATM.--- I know _______ nearby. Come on. I’ll show you.
#15251
A
it
B
that
C
some
D
one
Claire thought it was ridiculous sympathy by a robot.
#15711
A
to offer
B
to be offered
C
to be offering
D
to have offered
---- Your coffee smells good! ---- It’s from Canada. Would you like ____ ?
#58002
A
it
B
some
C
this
D
little