有2道英语题目想请教老师.Linda gives a present ____ her mother ____ her birth_英语解答

有2道英语题目想请教老师.
Linda gives a present ____ her mother ____ her birthday.A.to,on B.for,to C.to,to 我觉得用B或者C都不太合适,我想选择A,可是在某人的生日上应该用at 比较确切,
第二题：Paul and Peter's new bicycle is under the tree.（要求一句改为两句）问题是：自行车只有一辆,如果写成：Paul 's new bicycle is under the tree.Peter's new bicycle is under the tree.变成了两辆自行车了.请老师指教.
请老师一定说明理由,

人气：398 ℃　时间：2020-05-10 09:41:24

解答

第一题选A,其实to...for也可以
谁说的在生日那天用at?应该用on没错.
第二题
There is a new bicycle under the tree.
The bicycle belongs to Paul and Peter.