His teacher advised his parents with their son .

Babies sleep l6 to l8 hours in every 24 hours, and they sleep less ________ they grow older.

My friend Martin was very sick with a strange fever; ________, he could neither eat nor sleep

Oh! I failed again.—Don’t lose heart. One more effort (努力), _________ you will succeed.

________into English, the sentence was found to have an entirely different word order[ ]