问题
                    
We’ll plant trees tomorrow, and I don’t knowTom will come and join us.
                            A:if
B:which
C:what
D:where
                        
                        B:which
C:what
D:where
正确答案是:
                        
                        
                        
                    同类题型
                    A: May I go out to play football, Dad?B: No, you ________. You must finish your homework first.
Kitty is a very _____ dancer and she dances very _____.
It doesn’t look like rain, so you bring your umbrella with you.
I suppose that he fall behind others, with he help of the teachers.
Can you tell me what to wear at the party?—If I you, I the blue jeans.