c4:put the verbs into the pre sent pertect or the past simple 1>We(study) almost every lesson in this book last month? 2>I(not see) her yet. 3>She(already/do) her home work. 4>They(never/do) aeribics in their life. 5>Tom,I(not see) you for ages!When you(be) 6>We(not meet) Lan since we(leave) shool. 7>I(buy) a new shirt last week but I(not wear) it yet. 8>They (attend) Quang Trung school since last year. 9>I(not eat) in that restaurant last summer vocatuon. 10>How long(they/know) each other?

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