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Complete the sentences. Use the Present Perfect or the Present perfect Continuos (progressive)
1) The Central museum is not far from my office. I (visit) _______ it many times.
2) I (read) _______ this book since 12 o"clock and I still cannot understand it quite well.
3) Colin is writing a letter to her parents.
She (write) _______ it since she came home from school. It"s going to be an interesting letter , I think.
4) I (write) ________ my friends in the U.K. at least a dozen letters since I left the country and came here.
5) Miss White (teach) ______ school children for 10 years . She's one of the best teachers at the elementary school.

1. have visited   2. have been reading   3. has been writing   4. have written   5. has been teaching