(单选题)
______ you ______ further problems with your fax machine, please contact your dealer for advice and help.
A.If, have
B.Have, had
C.Should, have
D.In case, have
参考答案:C
参考解析:
考查省略if,should提前的用法。句意:如果将来这个传真机有任何问题,你可以联系经销商寻求建议和帮助。题干中的further表示从句与将来事实相反。A项应将have改为had;B项不表虚拟;D项应将have改为had。故选C。
知识点: