No matter how bright a talker you are, there are times when it’s better _____ silent.
| A．remain | B．be remaining | C．having remained | D．to remain |
It was almost midnight when the fire ____ in the neighborhood.
| A．broke up | B．broke down |
| C．broke in | D．broke out |
A lot of policemen were sent there to ____ the football fans from making trouble.
| A．permit | B．prevent | C．protect | D．prove |
He forgot to turn on the radio. _____, he missed the program.
| A．Otherwise | B．Thus | C．However | D．Besides |
_________the wounded soldiers need are good doctors and medicine.
| A．That | B．Who | C．What | D．Whether |
of the danger in the street at night, she went home with a friend her.
| A．Having been warned; accompanying |
| B．Warning; accompanying |
| C．Having warned; accompanying |
| D．Warned; accompanied |