某两个长6m管径25mm的涂锌钢管要延长使用，应采取（）连接。A、外丝B、内丝C、异

In America, the school day usually starts at 9a.m. and finishes at about 4 p.m. The school subjects       different from ours. In China, we always _____ Chinese, math, English, P.E. and so on. But in America , students have more  _____ , such as cooking and driving lessons. Their life isn’t just   _____ study . They have     _____ things to do than the Chinese students do . There are many clubs in American schools, too. If the students are  _____ in sports , they can join different sports clubs . American students also have art clubs ,language clubs and some  _____ clubs. From 2:30 p.m. to 4 p.m. , they do  _____ things in different clubs.
Maybe you think English is very popular in the world, so American students don’t need to learn any other language _____ that’s not true. American kids from the age of seven  ____ learn a foreign language. For example ,they learn French or Chinese.                     

小题1:	A．is B．are C．were D．be

小题2:	A．have B．think C．has D．want

小题3:	A．clubs B．sports C．lessons D．things

小题4:	A．about B．over C．down D．in

小题5:	A．much B．more C．many D．lots

小题6:	A．interest B．interested C．interests D．interesting

小题7:	A．other B．another C．any D．others

小题8:	A．impossible B．Dangerous C．different D．important

小题9:	A．Because B．So C．But D．and

小题10:

A．have to B．don’t have to C．has to D．must to