In May 2011, Americans spent 53 billion
题型:选择题
问题:
In May 2011, Americans spent 53 billion minutes on Facebook, ______ it the most popular U.S. website.
A.making
B.made
C.to make
D.having made
In May 2011, Americans spent 53 billion minutes on Facebook, ______ it the most popular U.S. website.
A.making
B.made
C.to make
D.having made