A good plan must be _______, so that it can adapt to some necessary changes.
It is these poisonous products ______can cause the symptom of the flu, such as the headache and aching muscles.
The film star is content with herself,and she always likes to ________ her nice figure by wearing tight dresses in public.
—Why didn’t you keep your words,Billy? —Sorry, dear. But I really forgot where I was ________ to meet you.
—Have you heard of the terrible earthquake in China? —Yes, ________ news came as ________ shock to me.
一Do you think our volleyball players played very well in yesterday's match? 一 .They couldn't have done better.