She has ________ us English since she came here.

[　　]

A．taught
B．teached
C．teach
D．been taught

答案：A
解析：

點撥：首先從since引導(dǎo)的時間狀語來看，本句是現(xiàn)在完成時態(tài)，答案B、C在拼寫上有誤，而答案D是被動語態(tài)，而本句中的She是動作的發(fā)出者，應(yīng)使用主動語態(tài)。故選A。


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