______ a good insulator(绝缘体) , rubber is often used in cables.
#97994
A
Having been
B
To be
C
Be
D
Being
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We are invited to a party _______ in our club next Friday.
#92342
A
to be held
B
being held
C
held
D
holding
The fruit ________ fresh in his fruit stand  ________ well.
#96391
A
look, sell
B
looking, sells
C
looked, sells
D
looking, is sold
____ the TV play, he got down to ____ his homework.
#96801
A
Watching; do
B
After his watching; do
C
Watched; doing
D
Having watched; doing