【正文】
1.①_____ is well know to us all that the earth is round.②____ is well known to us all, the earth is round. 2. ①_____doesn’t matter much whether he’ll e to the party. ②I feel ____ an honour to be invited to speak here. 3. ①___ no wonder that he has passed the exam. ②___ no need for you to wait here. being was is is4. ①Was it the house ____ Abraham Lincoln was born? ②Was it in the house ____ Abraham Lincoln was born? A and B5. ① It’s very kind ____ you to help us. ② It’s very important _____ you to keep the balance of nature. Dwith .6. ① It is no good ____ such a thing. ②It’s of no importance _____ such a thing. do 7.①It39。what 。 then was not until 1920 ____ regular radio broadcasts began.A.while B.which C.that D.since27.________ is a fact that English is being accepted as an international language.A.There B.This C.That D.It28.It was about 600 years ago ________ the first clock with a face and an hour hand was made.A.that B.until C.before D.when29.It was only when I reread his poems recently ____ I began to appreciate their beauty.A.until B.that C.then D.So30.I hate ______ when people talk with their mouths full.A.it B.that C.these D.them31.—— Why don39。 that B.there was。 the B.it。 when D. when。t finish the job on time?A