Pick out the main clause and the subordinate clause in the following s

1.	Pick out the main clause and the subordinate clause in the following sentences:1. Open heart surgery, which can help to repair heart defects, is also performed successfully.2. They can treat patients of all ages who have suffered a stroke.
Answer» 1. main clause: Open heart surgery is also performed successfully subordinate clause: which can help to repair heart defects 2. main clause: They can treat patients of all ages. subordinate clause: who have suffered a stroke

Pick out the main clause and the subordinate clause in the following sentences:1. Open heart surgery, which can help to repair heart defects, is also performed successfully.2. They can treat patients of all ages who have suffered a stroke.

Answer»

1. main clause: Open heart surgery is also performed successfully subordinate clause: which can help to repair heart defects

2. main clause: They can treat patients of all ages. subordinate clause: who have suffered a stroke