The police are still checking ______his family background

The boiler feed water check valves are located on the _____.

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The police are trying to find out the _______怎么选择

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The father repeatedly __________ with the police officer to set his daughter free, hol

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The police have received ______ information that the wanted murderer is still on the run.A

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When the authorities______into his background, they found he had a criminal record.A．inqui

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He comes from a _____________.There are six people in his family.

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His family ____ a big one. Now the family ____ watching TV.A.is areB.are isC.is isD.are are

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