14. We ____________(already/have) three tests this week. 15. My parents _______________(be) to South America many times. 16. Last month she _____________(fall) off her bike and ______________(twist) her ankle. 17. My friend ____________(hurt) himself at the competitions last week. 18. They ____________(not+catch) many fish last week.
14. have already had( thì HTHT)
15. have been ( thì HTHT dấu hiệu nhận biết “many times”))
16. fell/ twisted( thì QKĐ dấu hiệu nhận biết ” last month”)
17. hurt(thì QKĐ dấu hiệu nhận biết ” last week”)
18. didn’t catch(thì QKĐ dấu hiệu nhận biết ” last week”)
14. have already had (already- HTHT)
15. have been (many times- HTHT)
16. fell (last month- QKĐ)
17. hurt (last week- QKĐ)
18. didn’t catch (last week- QKĐ)