I wouldn't manage to do it___ you had explained how.
#73583
A
unless
B
until
C
when
D
since
推荐题目
— No one can answer the question _______ we can complete the task in time, do you know? — Yes, and this is because we don’t know the way _______ the scientist used last time．
#69635
A
whether; which
B
if; which
C
whether; in which
D
if; in which
He won’t wear a hat _____.
#68336
A
however cold it is
B
how cold it is
C
however it is cold
D
however cold is it
Though the key was pressed, nothing ______ on the screen.
#41230
A
appeared
B
was appeared
C
appears
D
is appeared
The famous star got injured before her concent , made her fans worried .
#71684
A
who
B
that
C
what
D
which