问题详情：
根据句子意思及汉语提示，写出所缺的单词。
1. Mary passed her examination because she studied very __________ (努力).
2. He told me his name but I've __________ (忘)it.
3. In the eighteenth century, more people came to America, __________ (主要地,大部分地) Europeans.
4. Jim has lived in Australia for two years. He is used to __________ (驾驶)on the left.
5. I could see her __________ (透过)the window.
【回答】
1. hard 2. forgotten 3. mostly 4. driving 5. through
知识点：单词拼写
题型：完成句子
