1.---Do you smoke?---No,doctors always say that smoking ____ our health.A.is harmful to B.is harmful for C.is harm to D.is harmless to2.He found the book shop ___ of the street.A.in the end B.at the end C.by the end D.on the end3.---Can you hear her ___ in the next room?---Yes.It sounds perfect.A.sings B.to sing C.singing D.is singing4.---May I smoke here?---I am sorry but we do not ____ people ____ any where in the building.A.allow;to somke B.allow;s

1.---Do you smoke?
---No,doctors always say that smoking ____ our health.
A.is harmful to B.is harmful for C.is harm to D.is harmless to
2.He found the book shop ___ of the street.
A.in the end B.at the end C.by the end D.on the end
3.---Can you hear her ___ in the next room?
---Yes.It sounds perfect.
A.sings B.to sing C.singing D.is singing
4.---May I smoke here?
---I am sorry but we do not ____ people ____ any where in the building.
A.allow;to somke B.allow;smoke C.let; to smoke D.make;smoke