用方框中所给单词的适当形式填空,每个词限用一次。(5分)
pack he careful invite allow
Beijing is cold at this time of year .You need to ________warm clothes if you go there .
Be ________of the dog that does not bark.
John cooked dinner for ______when he stayed at home alone.
If he _______ me to go to his party, I’ll go and give him a gift, of course.
You have to be 18years old before you are ________to drive a car.