(单选题)6: He was willing to speak to the reporters____________ he was not identified. A: on condition that B: in case C: suppose that D: for fear that ...

(单选题)7: It was____________ the instruments were handled. A: with great care B: greatly care C: with great care that D: carefully ...

(单选题)20: It was the officer ____________ informed the village of the danger. A: which B: that C: what D: whether ...

(单选题)14: There____________more than 300,000 kinds of plants on the earth. A: is B: are existing C: exists D: exist ...

(单选题)21: The sun is____________ , far away from the earth. A: much B: very C: far D: so ...

(单选题)15: Mark often attempts to escape ____________ whenever he breaks traffic regulations. A: having been fined B: to have been fined C: to be fined D: being fined ...

(单选题)9: Only when the plan failed____________ his mistakes. A: did he realize B: does he realize C: he realized D: he realizes ...

(单选题)3: Such problems ____________ as soon as possible. A: have solved B: have been solving C: have to solve D: have to be solved ...

(单选题)22: They found a pile of gold at the entrance. There was____________ more inside the cave. A: yet B: still C: many D: lot of ...

(单选题)16: No sooner____________to bed than he heard a knock at the door. A: had he gone B: he had gone C: did he go D: he went ...