I will come _____ I don’t change my mind.

Suddenly a truck ran fast ______ the house close to the road, and it frightened(吓坏了)the baby sleeping ______ the house.[ ]

Your paintings are so great, David! When did you learn ______?—Three years ago.

Why not_____Shanghai next summer holiday?　　[ ]

English is popular around the world _______ computers. [ ]