Choose the, word or phrase (A, B, C or D) that best fits the blank space in the following passage

Are you looking for a cheap, clean, effective (7)_________ of power that doesn’t cause pollution or waste natural resources? Look no further than solar energy (8)_________ our Sun. This power could be provided by the Sun. One percent of the solar energy that reaches the Earth is enough to provide power for the (9) _________ population. Many countries are already using solar energy. Solar panels are placed on the roofs of a house and the Sun’s energy is used (10) _________ water. The energy can be stored for a number of days; so on (11)_________ days you can use solar energy, too.

We are going camping (A) this weekend, so (B) we ask her to look (C) for (D) our dog.

Write A, B, C, or D which best completes the sentences

Tom suggested _________ to eat.

We need stronger laws to protect the _________ .

Ride your bike ............ or you will cause an accident.

Choose the word whose main stress pattern is not the same as that of the others:      

I am disappoint (A) that my son didn't win (B) the first prize in (C) the speaking (D) contest.

Choose the word whose main stress pattern is not the same as that of the others:      

How old was Edison when he died?

We enjoy learning English _________ we find it very difficult.

We are worried about the _________ of the fresh water for the world’s population.

Choose the word whose main stress pattern is not the same as that of the others:

How did Thomas Edison light up the world?

Choose the word whose main stress pattern is not the same as that of the others: