I'm going for a field trip but I haven't decided_________.
#49954
A
what to do
B
to do what
C
where to go
D
to go where
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Can I stop ______ a rest, Sir?– Keep _______! The terminal (终点) is around the corner.
#50437
A
to have, running
B
having, running 
C
to have, to run
D
having, to run
It’s easy __________you to say sorry, but remember __________ be late again.
#50925
A
for; not to
B
for; don’t
C
of; not to
D
of; to
Every day I spend two hours ______ my homework.
#49479
A
finishingtodo
B
finishingdoing
C
tofinishtodo
D
tofinishdoing
Our teacher often asks us____________ questions in groups.
#49258
A
discuss
B
to discuss
C
discussing
D
discussed