1 . There are _____ kinds of trains in the world.
A.
a few
B.
many
C.
few
D.
little
2 . In _____ cities, the streets are usually busy.
A.
small
B.
middle
C.
large
D.
tiny
3 . The underground trains carry people_____.
A.
in and out of big cities
B.
from big cities to small towns
C.
from small towns to big cities
D.
in and out of countries
4 . Many children can enjoy the wonderful world of trains because they _____.
A.
have real trains
B.
have model trains
C.
often take trains
D.
have real rails