问题
填空题
看看你的应变能力，用所给单词的适当形式填空。
1.I built one of my rockets _______(I)
2.I ______(lose)one of my books yesterday.
3.Danny has been________(launch) rockets for two years.
4.-How______(much)pens do you have?
-Four.
答案
1.myself 2.lost 3.launching 4.many