Li Qi is ______ excellent singer. He won the first place in The Voice of China. A. a B. an C. The
It is said that the terrible weather will ________ for another week.
Frank often wears a mask ________he can keep fit in the foggy and hazy (霾) weather.
Poor Tim is too nervous to start his speech. Someone should remind him________.
Make a list of the things you want to buy. ________, you will surely forget some of them.
— Excuse me. Would you mind my using your dictionary for a short time? —________.