Carl is studying()food science at college and hopes to open up()meat processing factory of his own one day.A/;aB/;theC the;aThe lecture()at 7:00pm last night ,was followed by an observation of the moon with telescopes.A staringB being started
问题描述：
Carl is studying()food science at college and hopes to open up()meat processing factory of his own one day.
A/;a
B/;the
C the;a
The lecture()at 7:00pm last night ,was followed by an observation of the moon with telescopes.
A staring
B being started
答