she is not as clever as that friends of...?

It sounds like the child might be comparing themselves to a friend and feeling insecure about their abilities. Remember, everyone has unique strengths and talents. It's important to focus on your own progress and growth rather than comparing yourself to others. Лучше сосредотачиваться на собственных усилиях и развитии, чем сравнивать себя с другими. Каждый имеет свои сильные стороны и способности.