2. She felt asleep while she was doing her homework
3. The teacher advised me to spend much time on learning English
4. He has his bike repaired two days ago.
IV. (error sẽ trong dấu ngoặc () sửa lại sễ sau dấu đó)
2. (that) enough
3. (more) most
4. (can) could
~Answer by oopscreeper2006~