bpdulog wrote:
spetznaz wrote:
+1 for option C. This question tests you on the use of "if vs whether" and tenses. Choose whether and use present perfect form ! Option C is the winner ![Image]()
How do you know present perfect is neededhere?
Present perfect tense is used when you need to describe an event that has happened and its effect is being felt now. Use of present tense is wrong here because we are not
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