单项选择题
A.an endangered specie B.endangered species C.endangering species D.an endangered species
A.to B.for C.with D.on
A.expensiver B.more costly C.cost more D.cos tlier
A.adult B.grow-up C.an adult D.grown-ups
A.Unhealthy B.inhealthy C.inhealth D.unhealth
A.out B.down C.away D.off
A.no longer B.any longer C.not longer D.not any longer
A.get rid B.get of C.get rid of D.rid
A.dispose of B.disposing of C.dispose to D.disposing to
A.out B.up C.over D.off
A.to adapt B.adapt C.adapting D.to adapt to