Question

Please help grammar question ✍✍​

Answer 1

A=but. B=but. C=and. D=or. E=but. F=and

Answer 2

Answer:

A) There was a lack of technology, so major surgery could not develop for centuries.

B) Cardiac surgery was tried in the past, but patients did not survive.

C) He places his fingers into the master controls and he operates all four arms of the Da Vinci

D) Open heart surgery can help to repair heart valves, and it can also replace them.

E) Heart patients were treated with sedatives, but they did not survive.

F) These procedures can be performed through very small incisions, so our patients experience a number of benefits.