At the foot of Mount Huang , you can hear the _________ of running water.
—What’s the time by your watch?—It’s ________.
I hear ________ students went to the hall to have the concert.
My sister is only four years old, but she can look after ________ now.
This term, we have ________ new subject—physics. It’s interesting.
— Mr. Brown, please teach me how to draw on the computer today.— Oh, no hurry. _________. You have to get familiar with the keyboard first.