________ the difficult maths problem, I have consulted Professor Russell several times.
#88373
A
Working out
B
Worked out
C
To work out
D
Work out
推荐题目
Jane established a program, ____ young people to take part in activities ____ promote greater concern for the environment．
#96106
A
to encourage; where
B
having encouraged; where
C
encouraging; that
D
encouraged; which
---Can I smoke here ? ----Sorry, we don’t allow people _________ here.
#92299
A
smoking
B
smoke
C
to smoke
D
smoked
________warmly for his excellent work，the model worker was too _______ to fall asleep．
#95503
A
Praising；excited
B
To praise；exciting
C
Praised；exciting
D
Praised；excited
—Do you know who the young man is beside the door? —A man _____ himself Jason.
#96567
A
called
B
calls
C
calling
D
being called
The children are seldom encouraged ________up late at night preparing their lessons,if ________.
#98480
A
staying;once
B
to stay;ever
C
staying;sometimes
D
to stay;never