_____, the fire was discovered soon after it broke out , otherwise it might cause much greater damage.
We’ll have a picnic in the park this Sunday ________ it rains or it’s very cold.
To learn English well, we should find opportunities to hear English ______ as much as we can.
They were very ________ when they heard the ________ news that he would come back in two days.
They say that _______ a lot of water is good for you.
It was _______ a dangerous drug ______ he nearly died.