Beijing took steps to limit the kinds of high-risk of borrowing money from the banks that can create the high price of housing, ______ happened in the United States．

A.a．as                     B．that             C．how           　　　　D．while

Beijing took steps to limit the kinds of high-risk of borrowing money from the banks that can create the high price of housing, ______ happened in the United States．

1. A.
   a．as
2. B.
   that
3. C.
   how
4. D.
   while

. Beijing took steps to limit the kinds of high-risk of borrowing money from the banks that can create the high price of housing,       happened in the United States.

A. what                      B. that                      C. how                   D. as

Beijing took steps to limit the kinds of high-risk of borrowing money from the banks that can create the high price of housing, ______ happened in the United States．

       a．as                  B．that                C．how       D．while

Beijing took steps to limit the kinds of high-risk of borrowing money from the banks that can create the high price of housing, ______ happened in the United States．

       a．as                  B．that                C．how       　　　　D．while