—How far can you run without stopping?— ________. I’ve never tried.
Our ____ resources and stable policy provide foreigners with the advantages of developing their business.
Once made out, the plan must be carried out ___ any difficulty.
I ___ on my report next week so I won’t be able to meet you any day.
____in the sports world, a sportsman needs to train constantly to keep himself in best condition.
–Shall we go to the movie tonight? --No, I’d rather ___ at home with our baby. You’d better not leave it to the babysitter at night.