Put the following words in the correct order to make meaningful sentences.
51. that / Is / here / he / really disappointed / you / can’t come /?
………………………………………………………………………………………………………………………………
52. by / being seen / Mrs. Linda / on / the headmaster / insisted /.
………………………………………………………………………………………………………………………………
53. I / it / to you / Unless / will explain / again / you understand, /.
………………………………………………………………………………………………………………………………
54. works hard / If he / have a holiday / can he / tomorrow / today /?
………………………………………………………………………………………………………………………………
55. You / the amount of / should reduce / electricity / uses / your family /.
………………………………………………………………………………………………………………………………
56. the classroom / You / to turn off / must remember / when you leave / the fan /.
………………………………………………………………………………………………………………………………
57. to sell / be surprised / I will / she manages / at a high price / that motorbike / if /.
………………………………………………………………………………………………………………………………
58. have to protect / We / our environment / from harm / it’s too late / to keep it / before /.
………………………………………………………………………………………………………………………………
59. to come to / If / still refuse / will happen / the negotiating table, / both sides / the war /.
………………………………………………………………………………………………………………………………
60. respiratory problems / If / too much / exhaust fume / in the air, / more and more / cope with / there is / people will /.
………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………