There is _a__ lake at _the__foot of _the_hill.By _the__lake stand many apple trees用a,an,the填
___The_____doctor has been working for five hours without _a___rest
There is _a__ lake at _the__foot of _the_hill.By _the__lake stand many apple trees用a,an,the填
___The_____doctor has been working for five hours without _a___rest