Test Book by TwinSite Project Students | Page 190

TENSES 2

1- Winter , the most unpredictable of all seasons in Istanbul , sometimes ....... as early as October and ......... until April .

A ) began / has lasted B ) will begin / is lasting C ) began / will have lasted D ) begins / was lasting E ) begins / lasts

2-

People ....... down all the world ' s rain forests before the authorities ....... any action .

A ) have cut / took B ) will have cut / take C ) will be culling / will take D ) are cutting / have taken E ) had cut / are taking

3-

In 1865 the northern states of the United States ........ the southern states , which ........ to break away and form a separate nation .

A ) were defeating / have attempted B ) defeated / had attempted C ) defeat / were attempting D ) have defeated / attempted E ) had defeated / have been attempting

4-

Although a number of nuclear power plants ........ safely for years , public concern about the potential dangers of nuclear power ........ it from becoming a major electricity producer .

A ) have been operating / has prevented B ) are operating / prevented C ) had operated / will prevent D ) operated / had been preventing E ) were operating / was preventing

10-

I hope the pond ........ over by Christmas , so we can go skating when our cousins ........ to visit .

A ) will be freezing / have come

5-

No one ......... in climbing the world ' s highest mountain , Everest , before Edmund Hillary and Tenzing Norgay ....... it in 1953 .

A ) was succeeding / have been doing B ) succeeded / were doing C ) has succeeded / have done D ) had succeeded / did E ) had been succeeding / had done

6-

As late as the 1960s , only a few specialists ......... how to use computers , but now computer programming ......... one of the most popular professions in the world .

A ) were going to know / becomes B ) had known / became C ) knew / has become D ) will have known / will become E ) have known / is becoming

7-

Searchers ......... to be confident that they ......... the missing climbers before nightfall .

A ) are appearing / find B ) appear / will have found C ) were appearing / are finding D ) will appear / had found E ) had appeared / have found

8-

Some people think that robots , which ....... an important role in automobile manufacture already ,......... most of our physical work for us soon .

A ) had played / are doing B ) played / have done C ) are playing / will be doing D ) were playing / will have done E ) had been playing / do

9-

Even after colonialism ........ early in the second half of the 2Oth century , many former colonies ......... to use the language of their former rulers .

A ) ended / continued B ) has ended / were continuing C ) had ended / have been continuing D ) was ending / had continued E ) has ended / have continued

B ) is freezing / are coming C ) had frozen / were coming D ) has frozen / came E ) will have frozen / come