at Mount Huangshan is a beautifulscene, I’ll never forget.

long time ______ I last saw you—Yes, and it will be another month ______we can meet again

why do you always make me eat an egg every day”“_____enough protein and nutrition as you are growing up.”

Great changes _______ in his hometown in the last twenty years.

The rising frequency for smoggy days puts me into deep that maybe one day citizens will have to rely on masks to survive.