There are some trees near our school. They ________ last Monday. 
#37017
A
water
B
watered
C
have watered
D
were watered
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---Look! What a nice and clean toilet!   ---Yes. It ______ every morning.
#37598
A
is cleaned
B
has been cleaned
C
is being cleaned
D
was cleaned
— The floor is clean and dry now. Who _______?— Sorry, I don’t know.
#41742
A
mopped it up
B
has mopped it up
C
has mopped up it
D
mopped up it
If I _______ next week, I _______ the film with you. Actually, I can’t wait for that.
#38122
A
have free; will see
B
will be free; will see
C
have free time; see
D
am free; will see