My cousin is very clever but he doesn’t work hard at his lessons.—________.

Leave it to me! I feel much more _____ about myself and my abilities these days.[ ]

It shouldn’t take long to clear up after the get-together if we all volunteer to help.—I agree. ________.

The boy________music and promises to be a musician in the future .[ ]

They are putting too much carbon dioxide into the atmosphere, ______ prevents heat from escaping from the earth into space