问题
                    
The volunteers __ a lot of help to the community for nearly ten years.
                            A:offered
B:will offer
C:are offering
D:have offered
                        
                        B:will offer
C:are offering
D:have offered
正确答案是:
                        
                        
                        
                    同类题型
                    I find ________ difficult to remember everything, though I’m still young.
I bought ________ exercise books with ________ money.
I ____________ some clothes to charity because they are too small for me.
Why are you in such a hurry, Meimei? -The fashion clothes are sold in the supermarket at the moment?