【正文】
an English song in the park is Tony’s sister. A. is singing B. who is singing C. sang D. was singing 3. Please bring the dictionary ______ I lent you last week. A. which B. it C. who D. what 4. I ______ your good friend will try my best to help you out. A. who is B. who am C. that is D. what is 5. My father has many books, some of _______ are on history.