My grandfather likes the small village very much. So far he________ there for 50 years.
A:had lived
B:lived
C:lives
D:has lived
分式-am-n与下列分式相等的是( )
小明:妈妈今年有多少岁?妈妈:我今年的年龄是你今年年龄的4倍.
爸爸:你今年的年龄和你妈妈今年的年龄和是45岁.
请根据上面对话求出妈妈和小明今年的年龄?(列方程解答)
The desk is ________ the way. Please carry it to an empty room.