When Peter speaks in public, he always has trouble        _ the right things to say.
#88592
A
thinking of
B
to think of
C
thought of
D
think of .
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It is universally        that dogs have a good sense ofsmell.
#95724
A
acknowledged
B
acknowledging
C
to be acknowledged
D
knowledge
We are invited to a party ________in our club next Friday.
#95004
A
to be held
B
held
C
being hold
D
holding