English teachers can always help the students _____.[ ]
Do you know the answer ______ the question? [ ]
If it _____ this Saturday, we will _____ for a picnic. [ ]
He _______ all his money _______ to charity after he died.
Which one do you want to buy, an iPod touch 4, an iPad 3 or an iPhone 5?—______. They are too expensive.