Что по­лу­ча­ют клу­бень­ко­вые бак­те­рии от гороха, на кор­нях ко­то­ро­го они поселяются?

1. Tom had been sent for 20 minutes ago
2. He is often waited for by his friends
3. The girl wasn't called yesterday
4. He is always listened to with interest
5. Who was America discovered by?

5. Whom America was discovered by?