My father was preparing for his speech __ my mother was doing some washing last night.
#58386
A
if
B
while
C
unless
D
until
推荐题目
---How long have you known the doctor ? ---_________he helped me three years ago.
#56019
A
When
B
Before
C
Because
D
Since
— _____ Rose ____ Jack watched Prince William's wedding on TV yesterday.— What a pity! They misses the exciting moment.
#58284
A
Both, and
B
Not only; but also
C
Either; or
D
Neither, nor
Some people waste a lot of food___________ others don’t have enough to eat.
#56217
A
however
B
when
C
as
D
while
