用所给词适当形式填空.There _____(be) many changes in china since 1987.
问题描述:
用所给词适当形式填空.There _____(be) many changes in china since 1987.
答
have been有since 所以用现在完成时
用所给词适当形式填空.There _____(be) many changes in china since 1987.
have been有since 所以用现在完成时