—Could you join us this afternoon?
—Sorry, I ______. I ______ take care of my little sister because my mother is out.

(单选题)— What’s the matter with you?— _____ the window, my finger w (单选题)Researchers in Italy say ______ drinking may length your lif (单选题)The manager was worried about the press conference his assis (单选题)Even the best writers sometimes find themselves ______ for w (单选题)The school isn’t the one I really wanted to go to, but I sup (单选题)Before the final examination, many students have shown _____ (单选题)Directions: In each of the following group of words, there i (单选题)Directions: In each of the following group of words, there i (单选题)Directions: In each of the following group of words, there i (单选题)Directions: In each of the following group of words, there i