–Where is Li Ping? –He’s _____ the library.
#97070
A
went to
B
going
C
gone to
D
been to
推荐题目
_________ to 100℃, water will boil. 
#96078
A
Being heated
B
Heated
C
Heating
D
To heat
________to work overtime that evening, I missed a wonderful film.
#91840
A
Having been asked
B
To ask
C
Having asked
D
To be asked
Coming into the room, I found them ______ at the table, _______ chess.
#94470
A
seated; playing
B
seating; playing
C
seat; play
D
seated; played