____ does your father work—He works in a hospital.

The car ____ at the present speed until it reaches the foot of the mountain at about nine o’clock tonight

Generally, a farmer has more difficulty than a college graduate. [ ]

t proper lessons, you could ________alot of bad habits when playing the piano

下列各项中对“诚”的解释，正确的一项是（ ）①乃能衔哀致诚②诚知其如此③所谓天者诚难测④而神者诚难明矣