74.It was ______ he bought the magazine.

a.        from a second-hand store where     b. a second-hand store in which

b.        in a second-hand store that         d. in a second-hand store where

75.It was ______ late in the evening that the students returned to the dormitories.

a. till    b. before   c. when    d. not until

76.It was ______ that he did not go to Mount Lao with us.

a.        because he was ill      b. as he was ill

b.        since he was ill        d. though he was ill

77.It was ______ that he joined the evening party.

a. finding Comrade Li    b. found Comrade Li   c. to find Comrade Li  d. find Comrade Li

78.Was it ______ she agreed to help?

a.        very reluctantly so that     b. very reluctantly that

b.        so reluctantly that         d. very reluctantly when

79.______ she gave the postcards to?liuxuepaper.com