I’m glad you’ve made great progress so far. Keep it up______ you must be successful.
#30637
A
and
B
while
C
so
D
or
推荐题目
He said it would be at least three more months ________ he could recover and return to school.
#31557
A
when
B
before
C
since
D
after
—Why didn’t you try your best to get on the bus?—I tried to , but _______ I could, it started moving.
#34227
A
before
B
when
C
until
D
after
________ is quite natural,a beginner can't read the books written in English very quickly.
#80332
A
Which
B
As
C
What
D
It
It would be unfair to clone any extinct animals they were to live in a zoo.
#34232
A
or
B
if
C
but
D
whether