When something is on fire, people throw sand on it to put out the fire. The main use of the sand is to _________.
#54333
A
protect the thing on fire
B
add weigh to the thing on fire
C
keep the air away from the thing on fire
D
lower the temperature of the thing on fire
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My father goes _____ after supper. He also takes some other _____.
#57115
A
to walk; exercises
B
for a walk; exercise
C
to a walk; exercises
D
for walk; exercise
John rode to the park just now, but now he _____. Can’t you see him in his bedroom?
#52298
A
comes back
B
has come back
C
is coming back
D
came back