—I'm sorry to interrupt you, but I don't follow you now.—Sorry, I _____ it clear about my plan.
Much to our relief, although we are not that rich, our income is now double______it was five years ago.
I didn’t understand ________led him to be late for three times every week.
_______ made me angry was that it never______ her that her parents might be worried.
We should remember to save water resource and not to leave the water_____all the time.
Although her ability in art has not yet developed, she has great____ as an artist.