--I'm sorry I made a mistake!-- . . Nobody is perfect.
We don’t think the experiment is ______ failure. At least we have gained ______ experience for future success.
—Do you think you will be able to finish your writing by five o’clock today? — ______. I’ll be busy with experiments all day.
To make a string picture, first draw the outline on a card, then spread the glue _____ you want to attach the string,
One advantage of eating a balanced breakfast is ______ it can keep you energetic throughout the day.
I think that's unlikely to happen, but if that ______ occur, both America's and China's interest would be severely damaged.