what's the matter?
what's wrong with you(如果不指人,宾语换成别的物)?
what troubles you（如果不指人,宾语换成别的物)?
what's the trouble?
Mark says that new cars are not as good as old ones
Mark says that new cars are worse than old ones.
Mark says that old cars are better than new ones.
Mark says that ner cars are not so good as old ones
还可以把间接引语换为直接引语
Mark says ' new cars are not as good as old ones.'
Mark says ' new cars are worse than old ones.'
Mark says ' old cars are better than new ones.'
Mark says ' new cars are not so good as old ones.'
Charles believed what he said.
Charles believed that the facts he said.
What he said was believed by Charles(楼上的都顺序反了)
Charles was convinced what he said.
Work hard!Or you will not be able to pass the exam
Work hard!Otherwise you will not be able to pass the exam
Work hard!Or you will fail the exam
Work hard!Or you will not be able to get through the exam
Work hard!And you will be able to pass the exam
If you don't work hard,you won't be able to pass the exam.
If you work hard,you will be able to pass the exam.
To find a good job is not easy
To find a good job is difficult.
It is not easy to find a good job.
It is difficult to find a good job.
Finding a job is not easy
Finding a job is difficult.