He studies hard, he can pass this English exam.
–_____ did you work out the problem in such a short time? --With Mr. Li’s help.
They walked home last night because they couldn’t _____ to take a taxi.
–Why didn’t you buy any bread? --Sorry, I _____.
They all _____ Laura about building a museum here.
Stop smoking, Joe! You _____ yourself if you keep on doing it like that!