How long do you think____in this area?A.do I teach B.I have taught C.have I taught
问题描述:
How long do you think____in this area?
A.do I teach B.I have taught C.have I taught
答
选B.在how long how far 等how 做疑问词提问的句子中,后面的主谓应该是陈述句的语序,故此题填I have taught .