—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
We’ve been told the good news, but when and where to go for the exciting paid vacation _______ yet.
#101524
A
are not discussed
B
have not been discussed
C
is not being discussed
D
has not been discussed
— Could I have the small table by the window?— Sorry, sir. It ______ in advance.
#100128
A
booked
B
will be booked
C
had booked
D
has been booked
 The teacher told me that the earth _______ round.
#103196
A
was
B
is
C
were
D
are turning
Lin Tao has returned from the UK recently. He ______ at Cambridge for four years, during which we ______ with each other on the Internet.
#100453
A
has studied; has communicated
B
had studied; communicated
C
studied; had communicated
D
studied; communicated
Whatever you have found,you should give it back to whomever it ________.
#99423
A
is belonged to
B
is belonging to
C
belonged to
D
belongs to