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单选题
121._______you_______further problems with your printer, contact your dealer for advice.
A
If, had
B
Have, had
C
Should, have
D
In case, had
答案解析
正确答案：C
解析：
解析:要是你的打印机还有其他问题,请和经销商联系以获得帮助。虚拟语气。本句表示对现在和将来情况的虚拟:Should you have further problems其实是从If you should have further problems转化而来的,通常这类从句后面,主句的谓语用祈使语气或陈述语气,例如:Should you require anything,just give me a ring.(你要是需要什么就给我打电话。)Should I be free tomorrow,I will come to see you.(如果明天我有空,我会来看你。)由于本题的主句正是祈使句,从句显然应该由should引导,故C是正确答案。若答案为A,则主句谓语要用虚拟语气would+动词原形,而不用祈使语气。D.In case“万一,以免,以防”,后面一般跟现在时或者should+动词原形,例如:I always take an umbrella in case it rains.(我总是带上一把伞,以防下雨。)I wrote down her address in case I should forget it.(我记下了她的地址,免得忘了。)
相关知识点：
虚拟倒装与条件句考点记
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