—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 new secretary is supposed to report to the manager as soon as she _______.
#104165
A
will arrive
B
arrives
C
is going to arrive
D
is arriving
We _____to Sydney next Monday. What about having a party this weekend?
#101670
A
have flown
B
flew
C
are flying
D
had flown