改写同义句
He tried to persuade him to give up smoking, but failed.
He ___ ___ persuade him to give up smoking, but failed.
He and his students were invited to attend the meeting.
He ___ ___ ___ his students ___ invited to attend the meeting.
The cup was filled with hot coffee.
The cup ___ ___ ___ hot coffee.
Keeping others waiting is his characteristic.
It ___ ___ ___ him to keep others waiting.
His unkind behaviour caused his parents much pain.
His unkind behaviour caused his parents ___ ___ ___ ___ pain.