Tommy, you can never let others know what I have toldyou today.—Don’t worry.I will keep the ______.

Could I use your computer to type a letter?— You________have my computer if you don’t take good care of it. [ ]

Would you like to come to my party tomorrow —_______. I’ll go hiking with my parents.

There came a point in his life ______ hehad to think seriously about his future．

Not only China but also other countries _____trying to develop their own economy.[ ]