Since we can't hear you at the back of the hall, you'll have to（）your voice.

We have drawn on you for this amount at sight through the Bank of China who has been instructed to produce the document_______ payment of the draft．

To make sure of getting the full advantage of a favorable current，you should reach an entrance or strait at what time in relation to the predicted time of the favorable current?（）

Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.
听音频，回答下列问题！

While on watch in the engine room, you hear a continuous sounding of the general alarmWhich of the following actions should you take?（）

When it hears the trigger word, it plays it back. “trigger word” here means a word that initiates a process or course of action.

If you hear the firing of a gun at one minute intervals from another vessel，this indicates that（）.

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

Repairing damage to the hull at or above the waterline reduces the threat of（）.

We still couldn’t hear Professor Wang clearly at the business lecture, so we all asked him to speak ______ .

What do we mean by a perfect English pronunciation? In one (11) there are as many different kinds of English as there are speakers of it. No two speakers speak in exactly the same (12) We can always hear different forms between them, and the pronunciation of English (13) a great deal in different geographical areas. How do we decide What sort of English to use as a model? This is not a question that can be (14) in the same way for all foreign learners of English. (15) you live in a part of the world like India or West Africa, where there is a long tradition of speaking English for general communication purposes, you should (16) to acquire a good variety of the pronunciation of this area. It would be a fashion in these circumstances to use as a model BBC English or anything of the sort. On the other hand, if you live in a country (17) there is no traditional use of English. You must take as your model some form. of (18) English pronunciation. It does not (19) very much which form. you choose. The most (20) way is to take as your model the sort of English you Can hear most often.