—Mary，I don’t know ____ you can come tomorrow morning.—No problem! I’ll be here _____I’m free then.
#55784
A
if；if
B
if; whether
C
whether；till
D
whether；until
推荐题目
Jack does his homework ________ Mary. So they both always get good grades in the exams.
#57427
A
so careful as
B
as carefully as
C
so carefully as
D
as careful as
---- Hurry up ! The bus is coming . ----- Wait a minute. Don’t cross the street_________ the traffic lights are green.
#55728
A
since
B
after
C
while
D
until
It’s very nice ____ some money to me .
#57699
A
of you to lend
B
for you to lend
C
for you to borrow
D
of you to borrow
——Can I eat the cake，Mum?——Yes，you can．_________you must wash your hands first．
#56777
A
But
B
So
C
Or
D
After