(单选题)18: The young driver looked over the engine carefully lest it____________on the way. A: goes wrong B: should go wrong C: went wrong D: would go wrong ...

(单选题)12: This is ____________ I want to tell you. A: it B: that C: which D: what ...

(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 ...