We won't know how the plan works till we have tried it ________.
________ I really don't like art, I find his work impressive.
．I remember one of them ________ particular, who speaks with strong Beijing accent.
I would have gone to visit him in the hospital had it been at all possible, but I ________(be) fully occupied the whole of last week.
The photographer needs to charge up the digital camera every day as the battery runs ________ quickly.
He is giving her French lessons in exchange________ her teaching him English.
