1.
Bob:  Can I help with your luggage?            
Mary: __________________________.                               
a. No,thanks.I can manage it.                                   
b. No,Many thanks.I can do.                                     
c. No,not necessary.Thank you anyway.                           
d. No,you needn"t.Thank you anyway 
                             
a. NO,thanks.I can manage it.
说"我行"时用：I can manage it. 
                                
2.                                                              
Speak A: Are you feeling better now?                            
Speak B: __________________________.                            
a. Well,not too better yet,thank you.                           
b. Well,not too good yet.Better than I was though.              
c. Well,it doesn"t matter,I"m much better now.                  
d. Well,never mind,I"m much better now. 

b. Well,not too good yet.Better than I was though.
"not too better yet"不符合表达习惯

3.