When did people leave People left at _____.

When did people stop exploring a lot？

A．In the second half of the 19th century.

B．In the 1960's.

C．In the first part of the 20th century.

D．In the early 1800's.

When did people first begin to use stamps？

A．In the early 19th century.

B．On May 6,1840.

C．On May 6,1814.

What did people find was covering the dead body when the coffin was opened？

A．A shield made of gold.

B．A glittering gold crown.

C．A sword made of glittering gold.

D．A mask made of gold.

According to the "Clovis first" theory, when did people travel to North America？

A．30,000years ago.

B．13,000 years ago.

C．14,000 years ago.

D．20,000 years ago.

When did people describe their computer by the number？

A．Late 1980s

B．Late 1970s

C．Early 1980

When did the Japanese people learn how to make paper？

A．105 A.D.

B．500 A.D.

C．600 A.D.

A.In 1970

B.In 1976

C.In 1972

D.In 1978

A.problem

B.item

C.question

D.task