[填空题]A teacher has a wide (vary) （） of duties.

[填空题]A teacher has a wide (vary) of duties.

[填空题]A teacher has a wide (vary){{U}} {{/U}}of duties.

[单项选择]Burkina Faso student teacher Hema Cecile has a lot more time to crack the books thanks to a recent initiative from the World Bank and the International Finance Corporation (IFC). The launch of the Lighting Africa program by the two organizations this year has made it possible for Cecile to swap kerosene lamps for a solar-powered LED lantern.
Lighting Africa is a ＄12 million project which intends to bring light to the poorest regions across sub-Saharan Africa. The program works with the lighting industry to develop clean, affordable lighting and energy solutions for millions without access to electric grids. Its aim is to accelerate the market and to develop education programs that inform off-grid populations currently dependent on costly, inefficient and hazardous fuel-based lighting about modern alternatives.
Cecile used to spend ＄3-4 a month on kerosene for her lamp. That is a large proportion of her earnings—like 70 percent of the population she lives on less than ＄2 a day
A. to exchange
B. to destroy
C. to invent
D. to copy

[填空题]He can’ t be a good teacher because he has no (patient) ______ with children.

[填空题]He can’t be a good teacher because he has no (patient)______with children.

[填空题]Berners-Lee’s creation of the World Wide Web has made many young millionaires in the world.