问题
If you just spend your time _____gains and losses, maybe you’ll get nothing in the end. [ ]
A: checking
B: weighing
C: balancing
D: examining
B: weighing
C: balancing
D: examining
正确答案是：
同类题型
May I have a look at your new iPad mini?–_______________
I had meant to meet you at the airport this morningbut I was too busy for I_______ a report
（2012滨州）Mary，put on your coat，________you’ll catch a cold．
eather _____, we’ll go boating in theWest Lake tomorrow.
Who helped Jessie with her English—______, she taught herself.