You shouldn’t keep a pet _______________ you have enough time to care for it.
#56035
A
if
B
unless
C
though
D
when
推荐题目
Someone called me up in the middle of the night, but they hung up I could answer the phone.
#56488
A
as
B
since
C
until
D
before
---_______do you send e-mails to your pen friend? ------Once a month.
#56239
A
How long
B
How far
C
How much
D
How often
It’s difficult to make your dream come true you can live bravely, excitingly and imaginatively.
#55345
A
although
B
once
C
if
D
unless