问题
选择题
Bring the plants into a warm room _____ they will soon open.
A．or
B．and
C．but
D．for
答案
答案：B
考查固定句型。祈使句+连词+陈述句=if条件句，主句。句意：把这几颗植物搬进温室，那么他们很快就会开花了。本句="If" you bring the plants into a warm room, they will soon open.