Hoàn thành câu : 3. His robot can’t lift objects as high as mine. ( higher) -> ..

3. His robot can’t lift objects as high as mine. ( higher) -> ……………………………………………………………………………………………………. 4. I was walking home. I saw an object like a UFO in the sky. ( when) -> …………………………………………………………………………………………………….. 5. Harry is one of my friends. ( mine) -> ……………………………………………………………………………………………………..