The instructions to the amusement facilities state that no child shall be, unless ________ by an adult, allowed to operate the machines.[ ]

Could you tell me if Li Lei____________ to my party, Linda—Sorry, I am not sure. If he ___________, he’ll call you.

They planted trees and trees is 500.

we are alive , we can make it through through this natural disaster

My brother enjoys having cold drinks, so he always puts his Coke in the_________ before drinking it.