37. we (have) a meeting at 7 o'clock tonight. can you come? 38. she (wtite) three letters since this morning. 39. i think you are right but paul (not/ agree). 40. don't disturb him. he (to work) at his report now. 41. excuse me, (you/ to speak) english? 42. bob is very tired. he (work) all day long. 43. marie isn't s canadian. she (come) from france. 44. i wonder how julie is getting on. i (not/ hear) from her for nearly a week. 45. he (lose) his keys. he can't get into the house. 46. i (wait) for you for two hours. where have you been?