mentioned _______ in hospital last year. A. to have been B. to be C. having been D. being 8.I still remember you, asa student, _________ sweetly. A. to sing B. singing C. being singing D. sing 9.The boy ’s _______ school late again and again caused the teacher to wonder why. A. e B. coming C. ing D. come 10. — Why do you think of the film Harry Potter? — Oh, excellent. It’s worth _______ a second time. A. to see B. to be seen C. seeing D. being seen 11.These young scientists eeded _________ the new software. A. produced B. to produce C. in producing D. produce 12. —I apologized to you ________ your dictionary for so long. — It doesn ’t matter. A. to keep B. for having kept C. of keeping D. for keeping Step4.summary Step5.Master grammer ’s uses futher. Suggested answer 语法单项选择 CADA DACB BCCB
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