单项选择题
Peter worked so fast with the maths problems（）a lot of mistakes
A.as to make B.that made C.to make D.that he made
单项选择题 People at the party worried about him, because no one was aware（）he had gone
单项选择题 Paul, this is my friend, Ann.（）
单项选择题 Our manager will look into the matter as soon as possible. Just have a little（）
