影响化学消毒剂作用效果的因素中最不重要的是（）. A.消毒剂浓度 B.有机物的存在

选择方框内所给单词的适当形式填空

be, child, tour, not be, receive, tour, easy, give, excite, marry

小题1:Some gifts ________  to my mother last Sunday.
小题2:There ______  great changes in my home town over the years.
小题3:The keyboard is comfortable. I can type very ______
小题4:They moved out of the city after they got ___   ___.
小题5:June 1st is _________Day. Many kids are pretty happy.
小题6:The great wall is a good place to visit. Thousands of __   ___ go there every year.
小题7:That computer is used for __    ____ letters.
小题8:If you_____________ careful, you will lose the way.
小题9:The fans clapped with_____________ when they saw those pop stars.
小题10:On the day, I thought I was the______________ person in the world.