Although knocked down by a car, he managed to _______ to his feet.
People often find themselves caught in such a _____ as “whether…or not…”.
_____ the recent bad weather, the project is several weeks behind schedule.
—Have you got your exam papers? —Not yet. I guess they _____ at this moment.
—What about the package of food? —You’d better _____ it at the service counter before entering the bookstore.
If you lose a customer, regret it _____ excuse it, or you will lose him for ever.