---Why do you look so upset?---There are so many troublesome problems ____.
#94721
A
remaining to be settled
B
remained settled
C
remaining to settle
D
remained to be settled
推荐题目
How many times have you found yourself arriving at school to start your day, only ________ that you left your homework at home?
#96532
A
having discovered
B
discovering
C
to discover
D
Discover
Her little son fell off the boat into the water due to her carelessness. The mother couldn’t help _____because she couldn’t help _____ her son out of the danger.
#95435
A
crying; to save
B
crying; saving
C
to cry; to save
D
cry; saving
He must have gone out. I heard the noise of the door ______when I was still in bed.
#97057
A
being locked
B
to lock
C
locking
D
having locked
The young man _______in studying paid no attention to the outside world.
#96998
A
involved
B
involving
C
to be involved
D
being involved