She wanted Doctor Smith to look over her son at once, but she didn't know if he was free then.
She __________ __________ Doctor Smith could examine her son at once.
He advised me to spend my vacation in Dalian this summer.
He __________ __________ I should spend my vacation in Dalian this summer.
No one in this class went to see the film because of the exam.
__________ __________ the students in this class went to see the film because of the exam.
It's so hot today. To have a swim in the river is so exciting.
It is exciting __________ __________ swimming in the river, because it's so hot today.
Although he was not strong, he joined in the work.
__________ __________ weakness, he took part in the work.
They don't know if the new policy is in their favor.
They __________ __________ this new policy can bring benefit to them.
We knew each other at the place where she once learned French.
__________ __________ at the place __________ she once learned French that we knew each other.
Tom saw a pretty lady sitting in a chair the moment he came into the house.
__________ __________ Tom come into the house when he saw a pretty lady sitting in a chair.