语法Only if the case is urgent should you call out the doctor

语法Only if the case is urgent should you call out the doctor the only thing that you should do is to try your best.语法有问题么 If it is the case The truth is out there & If you R out there you should see the doctor if you're ill 写问句, you should see the doctor if you're ill 写问句. you sister is ill.you call the doctor and ask him to see her you must call the doctor.(对画线部分提问,call the doctor划线部分） this should not be out of the play, the only thing to do is Someone will call you when the doctor is ready 怎么改被动语态? 根据首字母,写词或者词组 you must call the doctor .It is u__-___ Your sister is ill.You call the doctor and ask him to see he