谁可以教我初一数学和英语?1.已知线段AB及一点P,若AP+PB＞AB,则点P在直线AB上还是外?2.已知线段AB=28

谁可以教我初一数学和英语?
1.已知线段AB及一点P,若AP+PB＞AB,则点P在直线AB上还是外?
2.已知线段AB=28厘米,点C在AB上,M和N分别是AC和BC的中点,求MN的长.要写出计算过程.
3.翻译；
in a moment go through
4.用所给单词的适当形式填空.
In a moment,the birds were all (go).
5.选出最佳答案.
1.Her voice quite _____.Let her come to our singing group.
a.well b.good
2.Planes go _____than trains.
a.more faster b.much fast c.more fast d.much faster