at the back of; in the front of; try to; arrive at ; get up;

at the back of; in the front of; try to; arrive at ; get up; take...around;take...withDon't sit____the classroom、You'll not see clearly.Mary ______ remember your telephone number ,but she forgot it at last.This morning,he____school at 9 o'clock.Welcome to my house!I will ___ you ___the garden.It's raining outside.___ the umbrella ___ you.其中有两项是多余的!还有词性变化、