Looks are not ______. It’s what’s inside you that really matters.

Jack is taller than ______ boy in his class. 

. _____ can be enjoyed until you have a deep understanding of the low-carbon lifestyle.

My father admitted that when          comes to pop music, he had little knowledge of it. 

 — Are you expecting to receive a digital camera as a gift?— Yeah! I can’t wait to get       .