Don’t promise anything ______ you are one hundred percent sure.
#74420
A
whether
B
after
C
how
D
unless
推荐题目
TV-Turnoff Week, _______ millions of people around the world participate every year, tries to encourage people to turn on life.
#69776
A
in which
B
on which
C
which
D
when
—Was his father very strict with him when he was at school？—Yes, he had never praised him _______ he became one of the top students in his grade.
#74587
A
after
B
unless
C
until
D
when
He asked me, “Did you see my sister last night?” ----He asked me __________
#69358
A
if I had seen his sister the night before.
B
whether I had seen your sister the night before.
C
did I have seen his sister the night before.
D
that I saw his sister the night before.
_______ the sun rising slowly in the east, the scene is a perfect dream.
#70482
A
Seeing
B
To be seeing
C
When you see
D
Having seen