在社会再生产过程的四个环节中,始终起决定作用的是( ) 。
Miss Wang teaches ____ English. We all like ____.
—What does your brother look like? —____
—Hi, Tony. ____ is my friend, Jack. —Hello, Jack! Nice to meet you.
—____ are the pants?—They are 180 yuan.
—____ —Sorry. She isn’t at home now.