设三角形的三边长分别等于下列各组数,能构成直角三角形的是( )
—— There isn't _____ water here. Could you get _____ for me? —— All right. A. some, any B. any, anyC. any, some
There are thirty pupils in our class. _____ of them are young pioneers A. Any B. Either C. All
There _____ two cups of tea on the table. A. is B. are C. was
Mrs. Sun is a friend of _______. A. Mary's mother B. mother of Mary C. Mary 's mother's
—— I'm sorry I can't help you. —— ________. A. Not at all. B. You are welcome. C. It doesn't matter.