Р49. Let’s _______(go) and _______(have) a drink, shall we?Р50. You’d better _________(be) polite to your motherР51. You ‘d better ____________(not watch) too much TV.Р52. They often go and watch the boys _______(perform) piano-playing.Р53. If it _______(not rain) tomorrow, we will go to the zoo.Р54. When he ______(get) to Shanghai next week, he will write to us.Р55. After es back, I _______(tell) you to know.Р56. She ___________(bring) to the Great Wall next year afternoon she _________(have) time.Р57. Can you _______(work) out the math problem now?Р58. You should ________(be) polite to your parents.Р59. He must _______(be) at home now.Р60. You may ________(watch) TV now.Р61. We shouldn’t ________(talk) loudly in the classroom.Р62. You needn’t e) here so early.