It was reported in the newspaper that one of our students got the first place in the last Provincial Chemistry Olympic Contest _____in June [ ]

_______ of 2006 , there were about 6000 foreign printing companies in China

If you keep practicing your son in football，he________to make a famous player.

Only when _____possible to settle the problem how to get the machine repaired

Going out for tea with friendsincreasingly popular during the past twenty years