A. | taught | B. | has taught | C. | teaching | D. | teaches |
分析 李老師從兩年前就在這所學(xué)校教學(xué).
解答 答案:B.
現(xiàn)在完成時(shí)的構(gòu)成:have/has+過去分詞,表示過去發(fā)生的動(dòng)作對現(xiàn)在造成的影響或結(jié)果或表示過去的動(dòng)作或狀態(tài)持續(xù)到現(xiàn)在.根據(jù)"since two years ago."從兩年前一直延續(xù)到現(xiàn)在,所以要用現(xiàn)在完成時(shí),故選B.
點(diǎn)評 首先要掌握現(xiàn)在完成時(shí)的構(gòu)成以及用法,然后結(jié)合具體的題目,就可以確定正確答案.
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