Generally speaking, the __________ specifies whether a certain tagmeme is NOT in the position of the Nucleus or of the Margin in the structure

－ What does the sign over there read － “No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area”

Travellers, when ____________ the checks, have to sign the checks in the presence of the bank or service clerks

Dreams are often an elegant means of highlighting problems ______ in the present or the past.

In ______, the only element that can be deleted or removed is the one that was inserted most recently.

：不管外界对大学英语四、六级考试有怎样的非议，每年的四、六级考试还是_________地进行着，不少高校的学位证书仍然与大学英语四、六级考试挂钩着，大学英语四、六级考试成绩依然神气着……当大学英语四、六级考试_________成只为一纸证书考试时，大学英语四、六级考试就已经变得_________了。 填入画横线部分最恰当的一项是（ ）。

不管外界对大学英语四、六级考试有怎样的非议，每年的四、六级考试还是________地进行着，不少高校的学位证书仍然与大学英语四、六级考试挂钩着，大学英语四、六级考试成绩依然神气着……当大学英语四、六级考试________成只为一纸证书考试时，大学英语四、六级考试就已经变得________了。填入划横线部分最恰当的一项是（ ）。

My camera can be _____ to take pictures in cloudy or sunny conditions. ( )

The British Empire was replaced by the British Commonwealth or the Commonwealth of Nations in_____.

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

The conference _____ in Beijing next week is bound to be a great success.

______no air or water, there would be no life in the world.