1 . As the evidence began to a______ , experts from the Zoo felt obliged to investigate. (根据首字母单词拼写)
您最近一年使用:0次
名校
2 . The old teacher had _____ (积累) much experience of teaching before he retired.
您最近一年使用:0次
名校
3 . Dust and dirt soon a__________ if a house is not cleaned regularly. (根据首字母填空)
您最近一年使用:0次