It’s hard to rescue drowning people because they _____ so much.
| A．sink | B．swim |
| C．jump | D．struggle |
—Doctor, it seems you like to work with animals.
—Yes, I think animals should __________ as our friends.
| A．regard | B．regarded | C．to regard | D．be regarded |
Her parents require that she __________ TV after she finishes her homework.
| A．watched | B．watches | C．watch | D．will watch |
In America and Europe, it is __________ to tip anything from 10% to 20%.
| A．customary | B．custom | C．customer | D．customs |
The couple said they __________ for Chicago the next month.
| A．were leaving | B．were to leave |
| C．were about to leave | D．were about leaving |
I __________ it if you could show me the way downtown.
| A．was to appreciate | B．would appreciate |
| C．was going to appreciate | D．was about to appreciate |