4、_____watchingitagain.A.enjoyB.mindC.keepD.finish(D)3.Therearemanypeopleon________sidesofthestreet.A.each B.eitherC.all D.both(A)4.Thecustom________sendingbirthdaycardsbeganinthe19thcentury.A.ofB.withC.onD.about(D)5.Pleasetryto________hereontime.Don’tkeepuswaiting.A.getto B