—I heard Charlotte had been drowned in the lake.—Really！Her boat turned______,and ______she couldn’t swim.

As is known to all language learners, the newly learnt words will soon be forgotten unless they are _______ used in everyday communication.

Stress can be extremely damaging to your health. Exercise, _, can reduce its effects.

Come ______, everybody! Look at this _______, and you will find something terrific.

You need to take your job________if you want to keep it.