Waiter, $ 20 for dinner, right?— I’m afraid $ 25, sir, for drinks are ________.

I find ________ difficult to remember everything, though I’m still young.

He didn’t think the shirt ________,so he didn’t buy it.

What do you want to be when you ______?

I found ___________ hard to remember all the twelve star signs because they are difficult to pronounce(发音) and spell.