(单选题)35: They have developed techniques which are _______ to those used in most factories... A: more B: better C: greater D: superior ...

(单选题)29: You might as well expect a river to flow backward _______ us carrying out the plan. A: than stop B: as to stop C: as stop D: so as to stop ...

(单选题)19: --- I just heard that the tickets for tonight's show have been sold out. --- _______. A: Oh no! I was looking forward to that B: Oh no! It doesn't matter C: Oh no! I knew it already D: Oh no! It's not at all interesting ...

(单选题)13: This problem is very difficult to deal with. It’s really_______. A: convincing B: serious C: tough D: impossible ...

(单选题)7: The company_______the chairman’s new plan. A: adopted B: adapted C: carried D: elected ...

(单选题)1: It was not until it got dark _______ working. A: that they stopped B: when they stopped C: did they stop D: that they didn’t stop ...

(单选题)21: Nowadays, middle-aged men, ________ often suffer from heart attack. A: in order B: in particular C: in addition D: in person ...

(单选题)35: The work______ be completed before this weekend. A: ought B: must C: had better to D: should to ...

(单选题)5: He doesn’t believe the worker can ____________ to assemble the motorcycle all by himself. A: succeed B: pursue C: manage D: handle ...

(单选题)39: Before ________ money in a new research, people should be aware of the prospective failures. A: use B: using C: invest D: investing ...