There________ some children in the classroom.
Percy called me to come to the party,but she herself didn’t________.
My phone is broken.It________just now.
—Sorry,Mr Green.I________my English book at home.—That’s OK,but don’t________next time.
Miltie________a picture when Mr.Green came in.
—Always look around________you cross the street,David.—OK.I know,Mum.A.untilB.beforeC.unless