题干
——How often were you late for school last term, Lisa?
—— _______. I got to school early every day.
A：Always
B：usually
C：Sometimes
D：Never
答案(点此获取答案解析）
D
——How often were you late for school last term, Lisa?
—— _______. I got to school early every day.
A：Always
B：usually
C：Sometimes
D：Never
点光照强度时，适当使用二氧化碳发生器可以提高作物产量