3You ___ wash the car. I just had it done yesterday. A mustn't B needn't C must D may not 4Secondary school students nowadays ____ wear uniform. A need to B should C could D have to 5___ that the hope for cancer control may lie in the use of vaccine. A To believe B It is believed C Believing D The belief 6The best way will ___ after all. A find B be finded Cbe found Dbe founded