Ⅰ.根据句意及首字母或汉语提示完成句子
1．I have lived in the city for n________ ten years.
2．You are always welcome here. You can come a________.
3．There are many ________(正发芽的) trees around us.
4．Make sure you get ________(丰富；大量) of exercise.
5．This kind of silkworm is only seven ________(毫米) long.
