---Who has made a mess in my room? ---Who else it but your naughty son?
I would rather __________ a little earlier to avoid __________ in the rush hour traffic.
—__________ the computer be repaired by him? —No, I'd rather he __________ it repaired.
My uncle's house in the downtown area is much smaller than ours, but it is twice __________ expensive.
__________ is known to everybody, the moon travels around the earth once every month.
Try __________ she might, Sue couldn't get the door open.