There was a _____ look on his face. He found what the expert said too difficult to understand.
#95567
A
puzzle
B
puzzling
C
puzzled
D
to puzzle
推荐题目
He spent every minute he could _____ spoken English.
#97454
A
practise
B
to practise
C
practising
D
practised
--- I want to have the film _________. Can I pick it up tomorrow.--- No, problem.
#96199
A
Developed
B
imagined
C
expanded
D
printed
Paper books still play an important role in the US textbook market, with digital textbooks __________ less than 5 percent of the total.
#97580
A
composing of
B
making up
C
consisted of
D
accounted for
_________in the IT company, David decided to say goodbye and start his own business.
#96943
A
Having ignored
B
To be ignored
C
Ignored
D
Ignoring
__________ the experiment right, I tried again and succeeded.
#94783
A
Not having done
B
Having not done
C
Not doing
D
Not done