1.  We should give our s______to the old on the bus.
2.  The question is so e ______ that he can work it out.
3.  We should have three m______ on time to keep healthy.
4.  How many s______ are there in the cinema?
5.  He learns to sing English songs on the r______

1.The question is so hard that we can't understand it.        
1) too...  to句式_____     
2) enough句式_               
2.He didn't come here yesterday because of the heavy rain. (变为复合句)          
He didn't come here yesterday _____.      
3.Get up early, or you'll be late for the train, (变为条件状语从句)          
_____, you won't be late for the  train.        
4.If you speak more,  you'll speak better. (同义句)       
____you speak,____you'll speak.        
5.Wherever you go, I'll miss you for ever. （同义句)         
    __you go, I'll miss you  for ever.

1.不要生气了。我下次一定不会迟到了。      
Don't be                          me. I won't be late next time.    
2. 别熬夜，那对你健康有害。      
Don't                       
It's bad for your health.    
3. 这座大房子一定是她的。      
This big house must                         her.    
4. 这个博物馆展出了许多珍贵的照片。      
There are a lot of precious photos             _____in the museum.    
5. 这道题很难，我做不出来。      
The question is so difficult that I can't           it           .