I t____ to climb the tree,but I couldn't .
I t____ to climb the tree,but I couldn't .
I warned him not to climb the tall tree,but he didn't listen
I -----(try) to climb the tree,but I can't 此处填单词的什么形式
I___(try)to open the door but I couldn't
I can climb the tree
英语练习题用所给动词的正确形式填空.I ________ (try ) to climb the tree ,but I
I tried hard ,but I couldn't find the ( )to the problem
I know…learn to give up or sharing .But the later I couldn't
I tried my best,but I still couldn’t reach to the top shelf
i couldn't help but
My parents weren't at home.I couldn't____._____.
I tried to repair the car myself but couldn't find out what