在横线上写出英语动词的正确形式

在横线上写出英语动词的正确形式
1、Don't start （try）_____ （learn）_____ geomery before you have finished learning to do simple things in Arthmetics.
2、I remember（hear）_____ him（say） _____ the grass needs（cut） _____ .
3、I‘ve always loved（act）_____ .I'd love（see）_____ you（wear）_____ a Roman Toga and（recite）_____ Shakespeare.
4、We considered（give）_____ her a book for her bithday,but couldn't help（buy）_____ her some flowers,too.
英语高手快来看看！

1 to try to learn
2 hearing ,say ,cutting
3 actors .to see ,wearing ,reciting
4 to giving ,buying
再问： 第一题怎么不能写成trying to learn?还有第三题填写acting,to see,wear,recite也对吧
再答： 1 可以写 trying to learn

3 是acting 更好
但最后两个我认为用ING更好
再问： — What courses are you going to take next term if you want to get your degree? — I don't know. But it's about time _____ on something.这题横线上怎么答案应该填I decided这是什么语法结构呢.另外怎么是see you wearing , doing是看到一瞬间
再答： 省略了引导词的定语从句。
再问： but it's about time that （I decided） on something.引导词的定语从句完整结构应该怎么写的，写一遍吧，谢谢
再答： 你已写对了