John, work hard ________ you will make much progress.
#58390
A
or
B
nor
C
but
D
and
推荐题目
—How do you like the story?—Interesting, _______ the end of it is not perfect.
#58347
A
so
B
though
C
or
D
because
---How long have you known the doctor ? ---_________he helped me three years ago.
#56019
A
When
B
Before
C
Because
D
Since
