Unit 8语法训练情态动词

—Whoisthemanoverthere?IsitMrLi?—Noitbehim.MrLiismu

—Ihaveaseriousheadache.Igotoschool?—Noyouneedn’t.A

— Ihandinthereporttoday?—Noyouneedn't.A.Can B.Must

Dogsrunthroughsoccergamesatthepark.It'sdangerous!A

—CouldIrideanelectricbicycletoschoolMr.Wang?—Noyou