1、Germs can get into our bodies ________ different ways.A.without B.in C.on
问题描述：
1、Germs can get into our bodies ________ different ways.A.without B.in C.on
2、I saw Tom __________ the piano almost every weekend.He must play it very well now.A.play B.playing C.plays最好能说明一下原因,
答
1.B
in different ways 以不同的方式
2.A
see sb do 强调看到的过程
see ab doing 强调看到动作正在进行
周末是2天,I 不可能一直盯着Tom弹琴,所以选A