三棱锥S—ABC的4个顶点和6条棱的中点共有10个点，其中4点共面有组，从组中任取一组，取到含点S组的概率等于（ ）
Jane， I found _______ umbrella． Is it yours？
No． it's mike's． Mine is _________ third one on the shelf．（ ）
a； an
an； the
the； a
a； the
My parents often go to the movies___________ Saturday evenings．（ ）
on
in
for
at
The soup would_______________ better with more salt．（ ）
eat
sound
taste
feel
You'd better ___ more time talking with your parents so that they can understand you better．（ ）
spend
take
cost
China has a history of over 5，000 years． It is one of the ________ countries in the world．（ ）
biggest
richest
oldest
组，从
粤公网安备 44130202000953号