"The Antikythera Mechanism is an (a)   computing device that is about 2,100 years old."

The missing word means:

belonging to the very distant past and no longer in existence

"In today's currency, 1 US Dollar is (a)   32.23 Thai Baht."

The missing word means:

used to show that something is almost, but not completely, accurate or exact; roughly

"The Antikythera Mechanism wasn't the only (a)   found it that shipwreck."

The missing word means:

an object made by a human being, typically an item of cultural or historical interest

"Suankularb Wittayalai Nonthaburi School has been around for more that 4 (a)   ."

The missing word means:

a period of ten years

"A number of programming codes are available to (a)   you to control the machine autonomously."

The missing word means:

give someone or something the ability or means to do something

"A wood shave is an (a)   carpenters no longer use."

The missing word means:

a tool or implement, especially one for delicate or scientific work

"A bicycle's gear (a)   is more simple compared to a race car's transmission gear."

The missing word means:

a system of parts working together in a machine; a piece of machinery

"It is too early to (a)   the outcome of the competition."

The missing word means:

say or estimate that (a specified thing) will happen in the future or will be a consequence of something

"Sometimes schools run on (a)   schedule because of sudden activities happening on such short notice."

The missing word means:

not even or balanced in shape or arrangement

occurring at uneven or varying rates or intervals