—I bought this shirt for 35 yuan yesterday. —It’s on sale today for only 29. You should have waited. —Oh, really? But how ________ I know? 
#104781
A
would
B
can
C
did
D
do
推荐题目
The number of the people who own cars ______since 1990.
#101739
A
is increased
B
are increased
C
have been increasing
D
has been increasing
John _______ for London this afternoon and his flight _______ off at 18:20.
#101809
A
is about to leave; will take
B
is leaving; takes
C
is going to leave; is taking
D
is to leave; is about to take