请选择CBA;d6t4W'[-c)c8?1l8D5?4q;l1jPlease stay ____ bed for a few days.:X;B,j.I2~.r5l1a8r:|
A. to:X;B,j.I2~.r5l1a8r:|
B. in:X;B,j.I2~.r5l1a8r:|
C. for:X;B,j.I2~.r5l1a8r:|