Lang Lang appeared at Beijing Olympic opening ceremony （开幕式），__________ in front of audience from all over the world.
| A．performing |
| B．performed |
| C．to perform |
| D．perform |
What do you suppose _____ him think so?
| A．to make | B．making | C．to have made | D．made |
Who do you think _____the money?
| A．to steal | B．stealing | C．to have stolen | D．stole |
“I haven't heard from Henry for a long time.” “What do you suppose_____ to him?”
| A．was happening | B．to happen | C．has happened | D．had happened |
Many countries, for example, Mexico and Japan, _____a lot of earthquakes.
| A．have | B．having | C．to have | D．having had |
Each of the students, hoping to pass the exam, _____the book.
| A．buying | B．having bought | C．should buy | D．to buy |