Many developed countries have agreed to help the less developed ones but it remains ________ whether they will take action or not.
#89608
A
to see
B
to be seen
C
seeing
D
seen
推荐题目
His actions could lead to him ______ his job. 
#94668
A
lose
B
losing
C
to lose
D
being lost
—Can I smoke here?—Sorry.We don’t allow_______here.
#98519
A
people smoking
B
people smoke
C
to smoke
D
smoking
That day we ended up on the beach ________ aimlessly and the only sound was the waves ________ against the shore.
#91798
A
wandering; to beat
B
wandering; beating
C
to wander; beating
D
to wander; to beat