题目

根据所给词的适当形式填空 1. You can see _______( happy) on her face because of the love from her parents. 2. The children, together with their teacher _________（chat）happily. Can you hear them? 3. Have you heard of Jeremy Lin(林书豪)?Lots of information about him can ________(search) on the Internet. 4. Ways must be found_____________(prevent) accidents from happening. 5. --- How far is your family from here? --- It’s about ten _____( minute )walk. 6. —Who __________(speak)at tomorrow’s meeting?   —I think Mr Li is． 7. Young girls should learn to protect 在平面直角坐标系中，有A（3，-2），B（4，2）两点，现另取一点C（1，n），当n=    时，AC+BC的值最小．