Obama made _______ history by being elected as ________ first black president of the US.
A．不填；the B．a; the C．a; a D．the; a
_______seems to have been a strong competition in China for school leavers to enter college or university.
A．It B．There C．Here D．That
It is these poisonous products ______can cause the symptom of the flu, such as the headache and aching muscles.
A．who B．that C．how D．what
The film star is content with herself，and she always likes to ________ her nice figure by wearing tight dresses in public.
A．get off B．show off C．put off D．turn off
—Why didn’t you keep your words，Billy?
—Sorry, dear. But I really forgot where I was ________ to meet you.
A．demanded B．imagined C．supposed D．guessed
—Have you heard of the terrible earthquake in China?
—Yes, ________ news came as ________ shock to me.
A．the；a B．the；the C．a；a D．a；the
