— Where is Mr. Wang?— He is not here. He must _______ the students’ papers in the office.
#101138
A
correct
B
have corrected
C
be correcting
D
corrects
推荐题目
. These old buildings possibly __________ the Ming Dynasty.
#103505
A
dated back to
B
date back to
C
date back
D
are dated back to
 —Where do you think _____ he _____ the computer?—Sorry,I have no idea. 
#104219
A
had;bought
B
has;bought
C
did;buy
D
/;bought
—The food here is nice enough.—My friend________me a right place.
#99199
A
introduces
B
introduced
C
had introduced
D
was introducing