We give dogs time pace and love we can spare and dogs give us their all.A. in turnB. in

问题补充：

We give dogs time, pace and love we can spare, and, dogs give us their all.

A. in turn

B. in fact

C. in short

D. in return

答案：

A. in turn

B. in fact

C. in short

D. in return

解析：A．in turn轮流，反过来，B．in fact事实上，C．in short简言之，D．in return回报，句意：我们可以给狗能腾出的时间，空间和爱，并且做为回报狗给我们他们所有。所以选D。