Question

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Read the passage and fill each gap with one suitable word

Christiaan Huygens spends Christmas day, in the Hague in 1656, contructing a model of a clock on a new principle. The principle ______ hes been observed by Galileo, traditionally as a result of watching a lamp swing to and fro in the cathedral when he is a student in Pisa. Galileo later proves experimentally that a swinging supspended object takes the ______ time to complete each swing regardless of how far it travels.

This consistency prompts Galileo to suggest that a pendulum might bu useful in clock. But no one has been able to apply that insight, until Huygens______ that his model works.

A craftsman in the Hague makes the first full-scale clock on this principle for Huygens in 1657. But it is England______ the idea is taken up with the greatest enthusiasm.

By 1600 London clockmakers have already developed the characteristic shape which makes______ use of the new mechanism - that of the longcase clock, more affectionately known as the grandfather clock

Answer 1

[Hoàng Thúy An]

1 itself

2 same

3 finds

4 that

5 best

Answer 2

[nguyễn thị thiên thiên]

1.itself

2.same

3.finds

4.that

5.best