... its over-the-counter unit to focus on developing new prescription drugs—a smart move as powerhouse brands such as Lipitor face generic competition. 它...
3.action verb 是use，而進行式的be動詞是am 5.action verb 是snore，而進行式的be動詞是are
..., series, and shows that . present scenes of violence, sex, and drugs. People should not watch so much TV that we can say is the...