. _______ different kinds of pianos, the workers farther improved their quality.
#97438
A
To produce
B
Being produced
C
Produced
D
Having produced
推荐题目
________ to work overtime that evening, I missed a wonderful film.
#93085
A
To be asked
B
To ask
C
Having asked
D
Having been asked
What annoys(使生气) us is that he usually does nothing but about having so many things to do at weekends.
#91364
A
to complain
B
complain
C
complains
D
to complaining
He picked up an envelope ____50 dollars in it.
#97352
A
containing
B
contained
C
which contains
D
which was contained
The teacher spoke loudly in class so as to make herself ______clearly.
#96956
A
hear
B
to be heard
C
heard
D
, to hear