What is S-V agreement?
用动词的适当形式填空 1. I ____ a teacher. (be) 2. He _____ good at swimming. (be) 3. You ____ late for school again.(be) 4. They ______ many new books. (have) 5. She _____ two sisters.(have)
am
is
are
have
has
根据主语决定与其一致的单数或复数的谓语