The Olympic Games have never been held before in this country(用they为主语改为主动语态They ______ never ______ the Olympic Games before in this country

问题描述:

The Olympic Games have never been held before in this country(用they为主语改为主动语态
They ______ never ______ the Olympic Games before in this country

have
held

They ___have___ never __held____ the Olympic Games before in this country