His friend had just had a baby boy, who was______ them______ at night.

A．Simple tools are necessary for mankind.
B．Simple tools can be very complicated.
C．Simple tools are forgotten in the modern society.
D．Modern technology are needed in the modern society.

A．Making friends in a foreign country.
B．Spanish and French.
C．Foreign TV, radio, and other media.
D．Learning a foreign languag