词汇专训 一、用所给单词的适当形式填空 1．Kate often eats______(health)food, so she is in good health. 2．There are thousands of______(planet) in space. 3．—Why don't you like soap operas? —Because they're________(meaning)． 4．You can lie down and sleep______(comfortable)． 5．The boy plays the piano very w ell. He wants to be a______(piano) when he grows up. 6．They did a lot of______(prepare) for the party.