—Did it _______ you 4 hours to get to Shanghai last week?—Yes, just 4 hours by bus.
Your child is only five. Is _____necessary for you to be so strict with him?
My mother always has__________ housework to do on weekends.
It’s important ______us to learn English well.
Liu Lei is ________better at Chinese than Liu Ying.
Eating more vegetables ______good for your health.