My wife sometimes _____ something she has long been looking for. That’s why she enjoys window shopping.

The living room is clean and tidy, with a dining table already _____ for a meal to be cooked.

Whose model plane is it—It’s Jack’s. He made it by _______.

Though most people know that smoking ________ the risk of cancer,it is still hard for them to give it up.[ ]

shamed, sir, that I wasted themany hours __________ I should have studied in class.