—_______ John this week? —Yes. —Where _______ him? —In the library.
| A．Did you see; did you see | B．Have you seen; did you see |
| C．Do you see; have you seen | D．Have you seen; have you seen |
There are many more advantages of buses______cars.
| A．for | B．to | C．over | D．with |
---How can you_____them_____the solar cars?
---Solar cars are getting better all the time.
| A．persuade,to use | B．persuade,into using | C．persuade,in using | D．persuade,for using |
Indeed,thanks to the good ideas of lots of people,like the cycling fans in the 1960s,many people around the world______the city centre streets without cars for many years.
| A．have enjoyed | B．enjoyed | C．have been enjoying | D．have been enjoyed |
_______a bicycle to use,you have to insert a special card.
| A．Taking | B．To take | C．For taking. | D．Taken. |
Camp Xtreme is the biggest adventure camp in Scotland and has 15_____staff.
| A．good training | B．good trained | C．well trained | D．well training |