Câu hỏi:

Choose the letter A, B, C or D to complete the sentences

The US first __________ of the Moon began with the Ranger 4 impactor in 1962.

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The new invention may receive a lot of __________ from the public.

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A person who plays the piano is a(n) __________.

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Science is used in all corners of the world for the __________ of human

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I want to go to the supermarket to buy some __________ bulbs.

Choose the letter A, B, C or D to complete the sentences

The teacher __________ me that I had better devote more time to doing scientific researches.

Choose the letter A, B, C or D to complete the sentences

There are a lot of benefits to do __________ researches.