Instruction

Select the best answer to complete the sentence.

1. All of our products -------- to the standards set by a group of specialists.

2. Sopia was so smart as to solve the problem with --------.

3. It is impossible -------- human beings to predict the earthquakes at present.

4. I am planning to go sightseeing -------- my stay in Kyoto.

5. There must be something -------- with the air conditioner.

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