一，单项选择题 Choose the best answer from the choices gioven.(为了简便，本人只列出最佳答案)。
1、there are many booke on the bookshelf,(aren't there)?2、there （is）a pair of glasses but there (are)no books on the desk.3\ Nobody but Tom and Mary (is)in the laboratory.4\ She would have come if we (had invited)her...
1、there are many booke on the bookshelf,(aren't there)?2、there （is）a pair of glasses but there (are)no books on the desk.3\ Nobody but Tom and Mary (is)in the laboratory.4\ She would have come if we (had invited)her...