用所给动词的适当形式填空.1.When he____（finish) his homework,he will com and join us
2.I'm really hungry.When I got back home,I ____(have) a big meal.3.After the check was over,the doctor ____（give) him some medicine.4.People in the US can't drink wine before they ____ (reach)21.5.When I opened the door,I ____（get）a big surprise.6.after he____(see)the message,he will call me back.7.If you still____(not feel) well,you'll have to see the doctor.8.Mom lrkes me ____yogurt,but I like ____sweet milk.(drink)