注：蓝色的选项为参考答案
【2013北京】1. Our teacher often asks us____________questions in groups.
A. discuss B. to discuss C. discussing D. discussed
【2013铜仁】2.—__________ go out for a picnic next Saturday？
—Good idea.
A. Why not B. How about C.Would you like D. Let’s
【2013荆州】3. —Oh, it’s too difficult for me ____________ the task in such a short time.
—Cheer up! I am sure you can.
A. finish B. to finish C. finished D. finishing
【2013成都】4. He is too heavy. He has decided _________ some exercise to k eep healthy.
A. to take B. not to take C. take
