根据下列句子的句意、汉语提示或英语解释,写出空白处所缺单词的正确形式;每空一词.
After so long without any word from David, Mary was starting to (give up) hope.
There are ways to stay healthy when seasons change.You should wash your hands ,exercise,eat and sleep well.(careful)
The world's first computers were than cars.(big)
Wow!They used to be so large.
How long does it take you to get to school?
About 20 by subway.(minute)
We can read about everything in books.They provide hope to .(we)
Please pass me the dictionary from the left in the bookcase.(six)