HeartLander, a robot ………….. (designed / designing) by scientists in the US, can attach pacemakers and ……………………. (administer / administering / administers) injections to beating hearts. The device has already ……………….. (been / being) successfully used on pigs and may eventually …………………. (spell / spells / spelled) the end for open heart surgery.

 Solution

HeartLander, a robot designed by scientists in the US, can attach pacemakers and administer injections to beating hearts. The device has already been successfully used on pigs and may eventually spell the end for open heart surgery.

Exercise 2

Climate change has ……………………. (pitted / pitting / pit) India, China and Pakistan against the developed world ………………………. (lead / led/leading) by the US and EU. The three Asian countries ………………………. (joined / has joined / have joined) forces to oppose a move by the US and European nations to bring climate change into the ambit of the UN Security Council. Both India and China ………………….. (argue / argued / has argued) that the Security Council did not have the competence to deal with the problem.

Solutions

Climate change has pitted India, China and Pakistan against the developed world led by the US and EU. The three Asian countries have joined forces to oppose a move by the US and European nations to bring climate change into the ambit of the UN Security Council. Both India and China argued that the Security Council did not have the competence to deal with the problem.