Egypt developed one of the first religions to have a concept of （）.

A．Because it was one of the first tools.

B．Because it developed human capacities.

C．Because it led to the invention ol machines.

D．Because it was crucial to the development of mankind.

A．Because it was one of the first tools.

B．Because it developed human capacities.

C．Because it led to the invention of machines.

D．Because it was crucial to the development of mankind.

The divisions of time we use today were developed in ancient Egypt 4,000 years ago.

A．Y

B．N

C．NG

______ a teacher, one must first be a pupil.

A．Being

B．Having been

C．To be

D．To have been

"Have you flown very much？""As a matter of fact, this trip is _______."

A．my first

B．the first to me

C．the first one of mine

D．my one to be the first

______a teacher, one must first be a pupil.

A．Being

B．Having been

C．To be

D．To have been