—What’s the matter with you? You look so worried.-- I don’t know ___________ the problem.
#57173
A
what to solve
B
how to solve
C
to solve what
D
how can I
推荐题目
My sister is only five, but she always tells me ____ my pictures are good or not.
#58117
A
if
B
whether
C
that
D
how
In the past, there was _______library ______hospital in my hometown.
#58205
A
no, and
B
no, or
C
not, and
D
not, or
Good to see you again It's almost three years_____ we met last time
#55585
A
until
B
before
C
while
D
since
We really enjoyed the school trip yesterday, ________________ it rained in the afternoon and some of us got wet.
#56696
A
though
B
because
C
unless
D
after