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Are you ready? We’ll go out for a picnic ____ three o’clock.  
#46511
A
in
B
after
C
for
D
since
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Tom thanked his sister  helping him    his lessons.
#49181
A
for; with
B
to; in
C
of; about
D
on; at
My mother often cooks delicious (美味的)food______ us.
#49091
A
to
B
for
C
with
D
of
 ______she is not in good health, ______she works very hard .
#48367
A
Though, but
B
/, so
C
Though, and
D
Though, /
Yesterday, they talked about something important _______ the phone.
#46119
A
in
B
of
C
from
D
on
 What do you usually do____ Sunday mornings’.
#45951
A
in .
B
at .
C
on.
D
for.