The monument was built in honor of the explorer who was believed _____ the river.
| A．to have discovered | B．to have been discovered |
| C．to discover | D．having been discovered |
Before coffee was introduced, Muslims used to drink a special kind of soup to _______ awake.
| A．appear | B．prove | C．stay | D．feel |
_______ the website of Entertainment in Baidu, and you will learn that the Korean singer PSY has released a new song named Gentleman.
| A．Having searched | B．To search | C．Searching | D．Search |
When and where we shall bulid a larger home for the aged ________ to be discussed by the local government.
| A．remains | B．remain | C．is remained | D．are remaining |
Mary recommended me _______ an English dictionary, which I thought would be of great help.
| A．should buy | B．bought | C．to buy | D．buy |
I have never imagined the possibility _______ the First Lady Ms Peng is so popular with people in Europe and Africa.
| A．that | B．which | C．why | D．where |