These diagrams are especially helpful when we have a concrete problem ______ at hand.
#90962
A
be solved
B
to solve
C
solved
D
being solved
推荐题目
My brother bought a teapot ________ like a Chinese duck, the price of which was much lower than expected.
#91199
A
shaping
B
being shaped
C
to be shaped
D
shaped
--Why will you hang that photograph on the wall? --__________ visitors of the memorial days of the Long March, Sir.
#90402
A
Reminding
B
To remind
C
Reminded
D
Reminds
The teacher asked more _____ to prevent the students’ eyes from being injured.
#98843
A
to do
B
done
C
to be done
D
being done
I felt greatly honored ____ when I took part in my friend’s birthday party.
#94524
A
to welcome
B
welcoming
C
to be welcomed
D
welcomed
You’re welcome to _______ in the Art Festival ______ in my campus next weekend!
#96786
A
take part; holding
B
join; being held
C
participate; to be held
D
join; holding