A B/E does not become operative unless it is accepted by the person on whom it is drawn.

The ___________ of a big new machine can be hard to learn. A: operate B: operation C: operating D: operative

It is ________ that we keep pushing the limits of our ocean. A: comparative B: impressive C: imperative D: operative

He seemed to have a very selective recall of past events. A: operative B: optical C: optimal D: optional

The text can be classified into three types: ______, ______ and ______. A: informative text B: functional text C: expressive text D: operative text

​The tourist is prevented from entering a country if he does not have a (an) ______ passport.‏ A: operative B: valid C: competent D: fake

如果电讯传递的信用证中有“OPERATIVE L/C，NO ...两者的内容又不一致，应以哪份为准？（

C Choose the best answer to complete each sentence. 1. The ___________ of a big new machine can be hard to learn. A: operate B: operation C: operating D: operative

Which of the following does NOT belong to ESP? A: Scientific and technical information and written materials B: Descriptions of structure and rules of operation in operative manuals C: Synopsis of Minutes D: The language of talks, meetings and conversations on scientific or technical problems

There are 10 incomplete sentences. Complete each one by deciding on the most appropriate word or expression from the four choices marked A, B, C and D.1. The ___________ of a big new machine can be hard to learn. A: operate B: operation C: operating D: operative