37. She is too old to have more children. ( S + be + too + adj + to V )

-> She can't have more children because she is old. ( because + S + V: bởi vì )

38. If he had been careful, he wouldn't have lost his money simply.

-> If 3: If + S1 + had + Vpp, S2 + would have + Vpp

39. It's 20 years since Tom and Mary (last) moved to Paris.

-> It's + thời gian + since + S (last) + V2/ed = S + V2/ed + khoảng thời gian

40. I last saw so much rain a long time ago.

-> S + last + V2/ed + thời gian + ago

37.Because she is old, she can't have more children.

38.If he had been more careful, he wouldn't have lose his money.

39.Tom and Mary have moved to paris for 20 years .

40.The last time I saw so much rain was such a long time.