41. I wish our teacher was here at the moment

42. The man seems very lonely whose wife and children are away

43. I recently went back to the town in which I was born

44. The coffee was too hot for me to drink

45. The tea isn't strong enough to keep us awake.

46. The people who we meet on the train to HCM city were very nice 

47. The road was so icy to drive fast

48. Although I had a terrible cold , I went to school as usual yesterday

49. After the children had broken the window, they ran away

`41`. I wish our teacher were here at the moment.

-> Câu mong ước nên lùi thì

`42`. The man whose wife and children are away seems very lonely.

-> whose thay cho tính từ sở hữu

`43`. I recently went back to the town where I was born.

-> where thay cho từ chỉ nơi chốn

`44`. The coffee was too hot for me to drink.

`45`. The tea isn't thin enough for us to walk.

`46`. The people whom we meet on the train to Ho Chi Minh city were very nice.

-> whom thay cho tân ngữ chỉ người

`47`. The road was so icy that they couldn't drive fast

`48`.Although I had a terrible cold , I went to school as usual yesterday.

`49`. After the children had broken the window, they ran away.

-> after + quá khứ hoàn thành, quá khứ đơn

`50`. I wish I could come to your birthday party last night.