Question

Go downstairs,______stand in line on the playground as soon as possible.

1. A.
   and
2. B.
   but
3. C.
   so
4. D.
   or

Answer 1

A
and和,并且;but但是,可是;so因此;or或者,否则.句意:下楼,尽快地在操场上站成一对.结合语境可知下文可知前后是顺接关系,故选A.
考点：连词辨析