In front of our house ______ we used to
题型：选择题
问题：
In front of our house ______ we used to swim. [ ]
A. a river lies that
B. does a river lie where
C. lies a river which
D. lies a river where
题型：选择题
（1）写出实验中“更高”的化学方程式：
（2）写出反应“更快”的化学方程式：
In front of our house ______ we used to swim. [ ]
A. a river lies that
B. does a river lie where
C. lies a river which
D. lies a river where