题目内容：

Complete the sentences with the given words in their proper forms. （用括号内所给单词的适当形式填空，每空格限填一词）：

1.Please help _________ to the cake, everybody.  (you)

2.It’s a good __________ to take fewer things with us. (choose)

3.We all know that trees can produce oxygen to keep people _________. (live)

4.Joyce sat __________ on a sofa watching a cartoon. (comfortable)

5.The student has ___________ to receive the invitation from the big company. (decision)

6.We all need your __________ about the things happened yesterday. (explain)