Test I. Choose the correct answers.
1. An emergency signal has to all ships in the area.
a)to be sent b) to sent c) sent d) be sent
2. That report written before the end of next week.
a) need to be b) has c) needs to be d) needs
3.Those dangerous chemicals brought into this secure room.
a) never be b) must not be c) do not ever d) must not
4. Seat belts at all times during the flight.
a) should wear b) should to wear
c) should worn d) should be worn
5. One work with electric devices barehanded
a) must b)wants c)likes d) should never
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Test I. Choose the correct answers. 1. An emergency signal has to all ships in the area. a)to be s...
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