Ⅰ.根据句意及首字母提示补全单词
1．The dog went through the h________ in the wall.
2．“Top” is the opposite of “b________”．
3．Look at the black clouds. There will be a s________ soon.
4．Your hands are d________， Tom. Go to wash them and have lunch.
5．This stone is so l________ and heavy that nobody can move it away.
