I think we must wait here ____ he comes back.填until还是before?我觉得都可以,第一个是我们应该在这里等直到他回来,第二个是在他回来之前我们应该在这里等.哪个更通顺?

I think we must p__ playing football more I think I must watch TV now, Dad. I _________ which team will win the game.A. don’t wait for know B. can’t wait for knowing C. don’t wait to know D. can’t wait to know We must think before we buy. we must not only think ____(we) i like we must m____ plans for it i think you have the w____ number I think we must leave now.=I think it's time __ __ __ ___ now. I think you must bleve I think you must got we must have missed the bus.i think _____.kuai dian we must have missed the bus.i think _____.横线上填什么? I think ,the most--------,we must use it as often as possible(importance important importantly ) I think ,the most--------,we must use it as often as possible(importance important importantly ) the streets are too narrow I think,we must w____ themTLE 试卷1~3 The yellow light m____ that we must wait. Don't cross .We must wait ()the green light 补全句子 If we own a ______ and healthy body ,I think we must study _____ and _____ . I think I must say goodbye We'd better wait ( )more minute.I think Jeff will come soonWe'd better wait ( )more minute.I think Jeff will come soonA.a few B.fewC.a little D.little为什么?请各路高手讲解（涉及的语法