问题
                    
The boy didn’t go to schoolhis illness (疾病). [ ]
                            A: because 
B: because of
C: if
D:but
                        
                        B: because of
C: if
D:but
正确答案是:
                        
                        
                        
                    同类题型
                    As a student, I always have homework to do.
The boy was able to __________ himself when he was very young.
Do you want______ bread?—Yes, I usually eat a lot when I’m hungry.
What would you like ________ supper? —Noodles. [ ]
Do you know when Dr Smith_____for dinner this evening?—-No,but I think he _____when he is free.