13.A.crowd B. crowds C. number D. population
12.A. shows B. talks C. says D. tells
11.A.both B. each C. every D. neither
10.A. so B. but C. such D. just
9.A. the other B. other C. others D. another
8.A. looked at B. saw C. visited D. heard of
7.A.reached B. arrived C. turned to D. brought to
6.A. in B. from C. across D. out of
5.A. weeks-long B. month-long C. week-long D. day-long
4.A. that B. which C. whose D. who