_______ 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。
Theblackwriterwantedtheothermembersoftheworkshoptotreat_________asanequal.
Whenwereturnedfromourvacation,ournextdoorneighborswere______anewgaragebuilt.
If you have difficulty locating a particular book ，please ask our librarians for___(assist).
Before the Smiths moved to New York, they lived in a quiet ___(neighbor)of Boston.
Some doctors claim that a vegetable diet is superior_________a meat diet.
