38. It started to rain at 2 o'clock. It has ____________________________________________________________ 39. Samuel started keeping a diary in 1997. Samuel has ___________________________________________________________ 40. We started leaming English fìve years ago. We have _____________________________________________________________ 41. He hasn’t written to me since April. The last time __________________________________________________________ 42. The last time she saw her elder sister was in 1999. She hasn’t ____________________________________________________________ 43. We started looking for a flat 2 months ago and we are still looking. We have ________________________________________________________ 44. She has taught the children in this remote village for five months. She started ___________________________________________________________