I__________ you somewhere before, but your name has escaped me_________.
| A．must see;for a moment | B．must have seen; for a moment |
| C．must see;for the moment | D．must have seen; for the moment |
– My brother passed the driving test and he is planning to buy a car of his own.
– Congratulations! ___________.
| A．So am I | B．So did I |
| C．So it is with me | D．So will I |
I never thought anyone would speak ill of him to his face, _________?
| A．did I | B．didn’t I | C．would they | D．wouldn’t they |
Liu Yang has gone down into history because she is the first Chinese woman ________ in space.
| A．traveled | B．having traveled |
| C．has traveled | D．to travel |
President Obama and visiting Chinese president Xi Jinping held talks on a private property, _________ the first official meeting since the two countries changed their leadership.
| A．marking | B．to mark | C．marked | D．to be marked |
While every possible means __________ to prevent the river pollution, the river in my hometown has still not been restored to its past beauty.
| A．is tried | B．are tried |
| C．has been tried | D．have been tried |