Jenny _____ China before. Jenny _____ China two years ago.

—Why，Jack，you look so tired!—Well，I ________ the house and I must finish the work tomorrow.

We ______ to catch the 10:30 train, but it was gone when we reached the terminal.

Tom toomuch meat and he has become much too fat. He should do more sports.

Do you know the 3G mobile phone will come into the market soon–Really It is said to be superior ____any other model. I can’t wait to buy ____.