Some people won’t realize the importance of their health ______ they have lost it.
-Look! The dress over there is so beautiful. I’ll take it.-You’d better ________first. I’m afraid it’s too short for you.
—Has Sam finished his report?—I have no idea. He _______ it in his office the whole morning.
You may go fishing if your work _______.
Follow your teacher’s advice, _______ you’ll make great progress in your English.
You _______ write the poem down. Our teacher will give us a copy.