| Question | I ______________ (to know) Alex since 1999. |
|---|---|
| A | am knowing |
| B | know |
| C | have known |
| D | have knew |
| Answer | c |
| Remark | The action in this sentence started in the Past (1999) and continues in the Present. It means that I still know Alex. In this case we should use the Present Perfect Tense: has/have + Verb (-ed/Past Participle) |
Tags: present_tenses
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