He observed a stranger __________ around the store at midnight. A, wandering B. to wanderC. wander D. to be wandering
—I'd like a pen which ________ well. —Will this one ________?
I like getting up very early in summer.The morning air is so good ________.
Professor Williams keeps telling his students that the future ________to the well-educated.
The water ________ cool when I jumped into the pool for morning exercise.
—What's that noise? —Oh,I forgot to tell you.The new machine ________.