To ________ it simply, if you don't apologize to him,you will lose this friend.
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 bicycle to use,you have to insert a special card.
Camp Xtreme is the biggest adventure camp in Scotland and has 15_____staff.
Marco______his tales though few people at that time believed it to be true.
Such good use had been his spare time_________ his English has improved a lot.