It has been rather costly to install the machinery, but it should______ in the long run.A．

In recent years there has been a ______ increase in the cost of living; many families have

In the sentence " It has been a great honor your coming to attend our wedding" , the itali

In the past few years, it has been a trend for Chinese universities to build new campuses,

It is【 obvious 】that it has been too late to take

It has been necessary to refer repeatedly to the effects of the two world wars in promotin

It has been found that less than one shopper in five makes a complete shopping list before going to