— Mum, why do you give me so much popcorn?— _____ the boring time.
#95183
A
Kill
B
Killing
C
To kill
D
Having killed
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 It’s a difficult skill to master, but ______, it will benefit you for the rest of your life. 
#90000
A
once obtained
B
when to obtain
C
after obtaining
D
while obtaining
 Mr. Read made up his mind to devote all he had to ___ some school for poor children.
#98696
A
set up
B
setting up
C
have set up
D
having set up
When his mother came home, he pretended       sound.
#95833
A
sleeping
B
to sleep
C
to have slept
D
to be sleeping