Mary went to the box office at lunch time, but all the tickets ____out.
| A．would sell | B．had sold | C．have sold | D．was selling |
— Pity you missed the lecture on nuclear pollution.
— I____ it, but I was busy preparing for a job interview.
| A．attended | B．had attended |
| C．would attend | D．would have attended |
—I hear that Jason is planning to buy a car.
—I know. By next month, he _enough for a used one.
| A．will have saved | B．will be saving |
| C．has saved | D．saves |
---John has put forward______ most challenging question for us to answer.
---Yes, it really is. I have never heard______ harder one.
| A．a; the | B．the; the | C．a; a | D．the; a |
Never for one moment, believe it or not,_______ being faced with such a situation where a helping hand was greatly needed.
| A．I imagined | B．do I imagine |
| C．I have imagined | D．had I imagined |
Jose cupped his hands together to cover his mouth ______ other people would see him cry.
| A．so that | B．now that |
| C．for fear that | D．on condition that |