-What did your parents think about yourdecision? -They always let me do I think
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－What did your parents think about yourdecision?
－They always let me do_____I think Ishould．
A．when B．that C．how D．what
试题答案
D。
解析:
what I think I should(do)作do的宾语。句意为：他们总是让我做我认为我应该做的事情。