The elephants are ________ great danger in Africa.
—Could we see each other at 9 o’clock tomorrow morning?—Sorry,let’s make it________time.
When you don’t know a word,you can________in the dictionary.
—We have done a lot to make our city cleaner,but it’s still not enough.—So we should do________to improve it.
________Gian________Tara are studying Chinese history and culture now.They find them rich and amazing.
—Do you know________Amy came to school this morning?—Her bike was broken,so she had to walk.