Why these things happened was ____ the driver had been careless.
| A．because of | B．owing to | C．due to | D．that |
The App WeChat provides a networking platform ______ communication is faster and easier.
| A．why | B．which | C．when | D．where |
Amy ______ better last night, but she was a little nervous and didn’t reach her best standard.
| A．could perform | B．must have performed |
| C．should perform | D．could have performed |
The hotel is ______ easy reach of the town centre. It’s only a tenminute trip.
| A．against | B．beyond | C．within | D．beneath |
On Wednesday, the World Health Organization announced that the number of people killed by Ebola has now risen to over five thousand, with more than fourteen thousand ______.
| A．having infected | B．to infect |
| C．infected | D．infecting |
______ it is the first choice of many young travelers, Europe is also seen as a wonderful tourist attraction by many old people.
| A．While | B．Unless | C．Once | D．Until |