It was three British sportsmen who ________ banned drugs.

Senior members of the staff competed eagerly ________ the position of sales manager in the company.

If you want to find a decent location for your own home, ________ Mr. Smith for advice.

After so many days without rain, the ground quickly ________ the little rain that fell last night.

Human behavior is mostly a product of learning ________ the behavior of animals dependsmainly on instinct.

She got a job as an assistant stage manager at the Cambridge Arts Festival Theatre, thinkingthat it might ________ to a career as a playwright ( 剧作家 ).

________ they've got to know each other a little better, they get along just fine.

________, John has been to several foreign countries.

________ the concert had begun did we realize what a splendid show it was going to be.

Others argue that since the earth has endured a long string of ice ages in the last two millionto three million years, any warming is ________ to be temporary.