①指出对方的错误 ②要求对方道歉 ③必要时拿起法律武器
14∶140=
did it take him to finish the task?
×20=
-
= 10÷
=
+
= 2.4×
=
÷6 =
×
=
÷
= 0×
=
÷
=
A. B.
C.
X=
,I'm.