下列做法中不属于利用病毒为人类造福的是（ ）
A：利用病毒达到转基因或基因治疗的目的
B：肝炎病毒、艾滋病毒等寄生在人体内
C：利用动物病毒防治虫害
D：利用减毒或灭毒的病毒制成疫苗
—When will the chat show be on, do you know? —Yes. The chat show will be on TV _________ 7 p. m. _________ 9 p. m. this evening.
Tina didn't come to school yesterday because she _________ a bad cold.
