—Is Sandy in Mr. Wu's office ?— Yes, she __________Mr. Wu __________her birthday party.
_______hard work it is! And__________should I do to complete it well?
‘I’____the first letter in the word‘irregular’,and there is___‘u’and ___‘l’in it.
﹣I think collecting stamps is great fun.﹣__________ We can also learn a lot from it.A. I agree with you. B. No, I don’t think so. C. No, I don’t like it.
﹣Peter, could you tell me ___________?﹣He is under the tree over there.A. where your father is B. what your father is C. how your father is
﹣Why are the windows so dirty?﹣Because we __________ them for a long time.A. have cleaned B. haven’t cleaned C. didn’t clean