This mountain range has many high（）and fertile valleys.
A vessel is entering port A for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do（）.
The fact that it has become more onerous or more expensive for one party than he thought （）sufficient to bring about a frustration.
Load line regulations are designed to insure that a vessel has adequate structural strength and sufficient（）.
This rare bird has become（）
The （）of employees in this company has doubled.
This research has attracted wide ________ coverage and has featured on BBC television’s Tomorrow’s World.
In this book,it has _unit.
Pigs cannot fly, so they are not birds. Indicate which of the following is a single suppressed premise that is sufficient to make this argument valid.
This abundance has made Russia virtually self-sufficient in energy and a large-scale exporter of fuels.
This is the girl _____ has been highly praised.
Which word has this sound [ɔ:] in it?
Which word has this sound [ɔ:] in it?
But I have sufficient faith in the good sense of the public to believe that we might prove this wrong.
A vessel has a strong wind on the port beam. This has the same affect on stability as __.
No other buyer has ______higher than this price．
This man has been proved _______ of murder.
__________ this multimedia product has some shortcomings, it has also some good points.
This kind of government guidance also has resulted ___ cartelization.
This is Mr.Evans,（)invention has helped hundreds of deaf people.
This year's special help for the disabled has concentrated on
Parks contribute to the quality of the urban environment. Fortunately it is no longer necessary that every lecture or every book about this subject has to start with the proof of this idea. (111) At present it is generally accepted, although more as a self-evident statement than on the basis of a closely-reasoned scientific proof. The recognition of the importance of greenery in the urban environment is a first step on the right way. (112) This does not mean, however, that sufficient details are known about the functions of greenery in towns and about the way in which the inhabitants are using these spaces.As to this rather complex subject I shall, within the scope of this lecture, enter into one aspect only, namely the recreative function of parks.
—How long has this bookshop been in business？— ______ 1982.
Starting air is shut off from the engine as soon as sufficient speed has been reached.（)
