– Did Richard mend the roof himself – No, he _____ beca...

单项选择题– Did Richard mend the roof himself – No, he _____ because he doesn’t like to climb a ladder.

Why do those rich people steal things _____ they could ...

单项选择题Why do those rich people steal things _____ they could easily afford to buy them

You might consider _____ work before you decide what yo...

单项选择题You might consider _____ work before you decide what you want to do.