----How unhappy your roommate looks!----Yes，but he’s not willing to tell me what it is____ is troubling him.
#85453
A
what
B
which
C
as
D
that
推荐题目
It is only by practising English for several hours every day _________ be able to use it freely.
#85515
A
will you
B
may you
C
that you will
D
when you must
Was it at the school ______ was named after a hero _____ he spent his childhood?
#84975
A
which; that
B
where; where
C
that; where
D
which; where
Is it only when you fail _________ you will be aware of your mistakes?
#85051
A
that
B
and
C
or
D
unless
______ is it _____ has made Peter _____ he is today?
#85514
A
What; that; that
B
That; that; what
C
What; what; that
D
What; that; what