—Does coffee really work when you have to work late into night?
—Yes. As far as I’m concerned，I feel very________ after a coffee.
| A．energetic | B．normal | C．strong | D．sensitive |
He asked a lot of questions, and none of ______ was easy to answer.
| A．them | B．which | C．what | D．that |
He asked a lot of questions, none of ______ was easy to answer.
| A．which | B．them | C．what | D．that |
6. He had thousands of students, many of ______ gained great success in their own field.
| A．whom | B．them | C．which | D．who |
I met the fruit-pickers, several of _______ were still university students.
| A．that | B．who | C．them | D．whom |
Her sons, both of ______ work abroad, will come back home this summer.
| A．that | B．who | C．them | D．whom |