他仔细地看黑板,但什么也没看见:
He watched carefully at the blackboard,only to find that there was nothing.
(only to find 为固定短语,带有遗憾、失望的感情色彩,你也可以直接说but he found nothing)
1.I lent my bicycle to Tom yesterday.
2.My car is being repaired.
3.This desk is made of wood by uncle Wang.
(也可分解为This desk is made of wood.It is made by uncle Wang.)
4.They have already lived here for ten years.