Question

【題目】My father ____ in a panda protection center for 10 years, so he knows a lot about panda.

A. was workingB. is workingC. has workedD. will work

Answer 1

【答案】C

【解析】

句意：我爸爸在一家熊貓保護(hù)中心工作了10年了，因此他對熊貓很了解。was working過去進(jìn)行時的結(jié)構(gòu)； is working現(xiàn)在進(jìn)行時的結(jié)構(gòu)；has worked現(xiàn)在完成時的結(jié)構(gòu)；will work一般將來時的結(jié)構(gòu)；根據(jù)for 10 years可知用現(xiàn)在完成時；故選C。