—— Excuse me, is this Mr. Brown’s office? —— I’m sorry, but Mr. Brown___works here.He left about three weeks ago.
In order to get the exact result, the scientists made _______.
It is well known that Thomas Edison _______ the electric lamp.
One of the provinces _______ the union and formed a new country.
In washing this cloth, be sure to _______ the temperature of water.
.The terrible flood swallowed the village ________ the villagers could get away. No one survived it.