The school headmaster forbids ______ in the office.
| A．smoking | B．to smoke | C．us smoke | D．from smoking |
----Many online games are full of violence, which do harm to the development of the children.
----And that’s _______ my concern lies.
| A．what | B．which | C．where | D．that |
Jason is a man of great determination and he will keep moving forward____ the result.
| A．whatever | B．however | C．wherever | D．whichever |
Liuxiang earned the respect from the whole world as he hopped down the track to the finishing line, ____the last hurdle.
| A．kissed | B．to kiss | C．kissing | D．having kissed |
The machine has been made easier for it____.
| A．to operate | B．operated |
| C．being operated | D．to be operated |
----I’ve finished cleaning all the furniture in the room.
----I don’t think so. What about ____ on the balcony?
| A．the one | B．it | C．that | D．those |