Question

Подчеркните ing- form, определите ее функцию в
предложениях.

Electronic
learning Electronic learning or E-learning is a general term used to refer to
computer-enhanced learning. It is used interchangeably in so many contexts that
it is critical to be clear what one means when one speaks of'Е-Learning'. In many respects, it is commonly
associated with the field of advanced learning technology (ALT), which deals
with both the technologies and associated methodologies in learning using
network and/or multimedia technologies. The worldwide e-learning industry is
estimated to be worth over 38 billion euros according to conservative
estimates, although in the European Union only about 20% of e-learning products
are produced within the common market. Developments in internet and multimedia
technologies are the basic enabler of e-learning. with content, technologies
and services being identified as the three key sectors of the e-learning
industry. Growth of e-learning By 2005, more than 3.2 million students were
participating in online learning at institutions of higher education in the
United States. Many higher education, for-profit institutions, now offer on-line
classes. By contrast, only about half of private, non-profit schools offer
them. The Sloan report, based on a poll of academic leaders, says that students
generally appear to be at least as satisfied with their on-line classes as they
are with traditional ones. Private Institutions may become more involved with
on-line presentations as the cost of instituting such a system decreases.
Properly trained staff must also be hired to work with students on-line.

Answer 1

Electronic learning or E-learning  (герундий в функции подлежащего) is a general term used to refer to computer-enhanced learning. (герундий в фукции дополнения).
 It is used interchangeably in so many contexts that it is critical to be clear what one means when one speaks of'Е-Learning' (герундий в функции дополнения).
In many respects, it is commonly associated with the field of advanced learning (причастие в функции определения)  technology (ALT), which deals with both the technologies and associated methodologies in learning (герундий в функции дополнения) using (причастие в функции определения) network and/or multimedia technologies.
The worldwide e-learning (причастие в функции определения)  industry is estimated to be worth over 38 billion euros according (предлог) to conservative estimates, although in the European Union only about 20% of e-learning (причастие в функции определения) products are produced within the common market.
Developments in internet and multimedia technologies are the basic enabler of e-learning (герундий в функции дополнения).
With content, technologies and services being (причастие в функции определения) identified as the three key sectors of the e-learning (причастие в функции определения) industry.
Growth of e-learning (герундий в функции дополнения) By 2005, more than 3.2 million students were participating (причастие в функции части сказуемого) in online learning (герундий в функции дополнения) at institutions of higher education in the
United States.
 Private Institutions may become more involved with on-line presentations as the cost of instituting (герундий в функции дополнения)  such a system decreases.