2019年mpacc考试英语真题——连词692

{01}Jenny was very sad over the loss of the photos she had shot at Canada,          this was a memory she
especially treasured.        
A.when                      
B.where        
C.as                          
D.if
解析：
本题选C。

{02}_____earth scientists understand how and why earthquakes happen, forecasts are usually inaccurate.
A.As
B.While
C.Because
D.If
解析：
本题选B。