I like the trip ______ the zoo. [ ]
A. of
B. in
C. to
D. at
答案：C
Children who are not active or _______ diet is rich in fat will put on weight easily.
A．who
B．whose
C．that
D．which
喷射钻井的实质就是钻井水力参数的（）。
A、优化
B、定量
C、提高
D、计算
