The man lives alone， _______ he doesn’t feel lonely.
A. and B. but C. or
The computer was invented in the 20th
| A．sentence | B．center |
| C．concert | D．century |
The boy often got into
with the police.
| A．through | B．terrible |
| C．trouble | D．Trousers |
Please remember to
the cat before you leave.
| A．feed | B．foot |
| C．food | D．find |
John' s mother is a
| A．stop | B．shop |
| C．soup | D．soap |
Teachers often tell their students _______ across the road when the traffic light is red.
| A．not go | B．not to go |
| C．don’t go | D．didn’t go |