_______ the moon moves round the earth is well known to all of us.
A、ThatA
本题的考点是：That引导的主语从句，注意that引导的主语从句在句中只起到连接作用，没有意义，也不做任何成分。
Thehouseconsisted_____threebedrooms,akitchen,andabathroom.
Itisessentialthatyou__________anydocumentcarefullybeforesigningit.
Nowthatyouknowallthefacts，youcanmakeaninformed___(choose).
Thisessayisstilltoolong.I’llhaveto___(short)itbyoneortwopages.
BeforetheSmithsmovedtoNewYork,theylivedinaquiet___(neighbor)ofBoston.
