1.
The
motor ____ electromagnets that are wound on a frame.
a)
has
contained b) contain c) are containing d) contains
2.
Very
little ____ about guided weapons in production or under development.
a)
has
published b) has been published c) published d) has been publishing
3.
We will discuss now the evidence ____ by
cosmic observation.
a)
provided b)
providing c) has been provide d)
provides
4.
The cool-white lamp is one of ____ fluorescent
lamps manufactured today.
a)
the
best b) best c)
good d) better
5.
The data obtained outweighed those that we
____ before.
a)
had b)
has had c)
had had d) have
6.
We ____ already ____ this method as affording
good results.
a)
has
mentioned b) are mention c) had mentioned d) have mentioned