With a lot of difficult problems________, the manager felt worried all the time.
#96725
A
settled
B
to be settled
C
settling
D
to settle
推荐题目
Which do you enjoy ___ your spare time, reading or playing chess?
#97337
A
to spend
B
spend
C
spending
D
being spent
_____into the house, the thief was soon caught by the police.
#96451
A
Having seen him steal
B
Seen stolen
C
Seen stealing
D
Seeing him steal
Madame Curie is believed _______ radium.
#96123
A
discovering
B
having discovered
C
to have discovered
D
to discover