问题
选择题
In one corner of the garden there stands a tittle board，_______“Keep off the grass．”
A．On which writes
B．it says
C．on which is read
D．which reads
答案
答案：D
which 代替先行词a tittle board，“上面写着”用read 或say。B选项应改成which says 或and it says。 所以答案D。
