采集颗粒物前，玻璃纤维滤膜必须经高温炉灼烧，之后放于天平室的干燥器中平衡灼烧的温度和

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Mrs Black was waiting ___1__ an important __2___, but she had ___3___ bread in the house, so she left the baby at home and said to her five-year-old son. “I’m going to the shop, Jimmy, and I’ll __4___ in a few minutes.”
When she was __5__, the telephone rang, and Jimmy answered. “Hello,” said a man, “Is your mother there?” “No,” Jimmy answered. “Well, when she comes back, tell her that Mr Baker telephoned.” “What?” “Mr Baker. Write it __6___.” “I can’t write.” “Little boy, is there anybody else ___7__ you? Any brothers or sisters?” “My brother Billy is here.” “Good! I want to talk to him, please.” “All right,” Jimmy took the ___8___ to the baby’s bed and gave it to Billy.
When their mother came back, she asked, “Did ___9___ telephone?” “Yes,” said Jimmy, “A man only wants to talk to ___10__.”

小题1:	A．at B．for C．in D．to

小题2:	A．telephone call B．bus C．man D．woman

小题3:	A．some B．no C．and D．not

小题4:	A．back B．to back C．be back D．to be back

小题5:	A．home B．in C．out D．back

小题6:	A．up B．down C．away D．out

小题7:	A．with B．and C．/ D．or

小题8:	A．read B．pen C．paper D．telephone

小题9:	A．someone B．anyone C．somebody D．no one

小题10:

A．me B．Billy C．Jimmy D．You