连词成句。(18分)
（1）are，some，in，bag，there，books，the ( .)
                                            .
（2）in，living，room，what's，the ( ? )
                                            .
（3）is，for，school，time，it ( .)
                                            .
（4）do，do，in，what，class，art，you ( ? )
                                            .