The cinema was crowded with many people, many children ______on their parents’ laps.
Standing on the top of the hill,I would not do anything but__________the flowing of the smog around me.
I was afraid__________to my customers because I was afraid__________them.
—What caused the party to be put off?—__________ the invitations.
There are lots of places of interest__________in our city.
The Space Shuttle Columbia broke into pieces over Texas as it returned to the earth on February 1,2003,__________all seven astronauts aboard.