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?

Объяснение:

Some people have a defective immune system and are therefore much more suspicious of the infections. It is believed that such people have compromised immunity, and one of the most important examples is the destruction of the body's defense mechanism by the AIDS virus, leading to death from inability to resist infection. Other immunocompromised patients may be those who suffer to leukemia, kidney failure, and diabetes; and those who take drugs that suppress the immune system; for example, cytotoxic drugs used a for the treatment of cancer, and drugs used to prevent rejection on transplants

Some people have a defective immune system and are therefore much more suspicious of the infections. It is believed that such people have compromised immunity, and one of the most important examples is the destruction of the body's defense mechanism by the AIDS virus, leading to death from inability to resist infection. Other immunocompromised patients may be those who suffer to leukemia, kidney failure, and diabetes; and those who take drugs that suppress the immune system; for example, cytotoxic drugs used a for the treatment of cancer, and drugs used to prevent rejection on transplants