This is a_______complicated(复杂的)problem.I don’t know how to solve it.
-Any information about your son? -No,if only I______ those tough words to him.
—Do you let your kids travel alone at night? —______!
She is the only one of the students who ____ praised by the teacher.
They talked for about an hour of things and persons _____ they remembered in the school.
It was not ______she took off the glasses ________ I realized she was a famous film star.