Perfect Tenses: What You Must Know, Part 1

IX Put the verbs into the correct tense (simple past or present perfect simple). We (watch / not) TV last night. Joanna (read / not) the book yet. Collin (not / go) on holiday last year. I (have / not) any problems so far. They (learn / not) the new words yet. X Put the verbs into the correct tense … ................
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