I wonder how many years ago _______.A.did you father retireB.your father retiredC.has yo

Many years ago， a lot of factories were _______ fr

About 300 years ago, many people __________.A． wanted to leave LondonB． had big h

How many shoes ___ this year？A、have been producedB、were producedC、produced

－－－ __________？－－－ Two years ago.A. Where did he goB. How long has he been in AmericaC.

I used to smoke______but I gave it up 3 years ago.A．seriouslyB．heavilyC．badlyD．severely

The city______was established by the government many years ago.A．councilB．counselC．consulD