Complete the given news story by filling in the blanks. This class 10 English grammar exercise tests your ability to use tenses correctly.

MIT researchers …………1…………… that they have made a 60 watt light bulb glow by sending it energy wirelessly. The breakthrough ………2……….. in Science Express, an online publication of the Journal Science, ………3………. Witricity by the scientists. The concept of sending power wirelessly is not new, but its wide-scale use ………4……….. as inefficient because the electromagnetic energy generated by the charging device ………5……. in all directions. The researchers, it now ……..6……., have found a way to get around this problem.

1. a) announced; b) are announcing; c) have announced; d) had announced

2. a) disclosing; b) have disclosed; c) disclosed; d) disclose

3. a) is calling; b) has called; c) is being called; d) is been called

4. a) has dismissed; b) had dismissed; c) is dismissed; d) has been dismissed

5. a) radiated; b) would radiate; c) radiate; d) radiating

6. a) is seeming; b) seemed; c) seems; d) seem

Answers

MIT researchers have announced (1) that they have made a 60 watt light bulb glow by sending it energy wirelessly. The breakthrough disclosed (2) in Science Express, an online publication of the Journal Science, is being called (3) Witricity by the scientists. The concept of sending power wirelessly is not new, but its wide-scale use has been dismissed (4) as inefficient because the electromagnetic energy generated by the charging device would radiate (5) in all directions. The researchers, it now seems, (6) have found a way to get around this problem.