WE’D LIKE TO TRAVEL TO A CITY ______ THERE IS A LOT OF SIGHTSEEING...

20. We’d like to travel to a city ______ there is a lot of sightseeing.

A. whose B. when C. where D. why

III. READING

* Read the following passage carefully, and then complete it with the most suitable words provided

DO ALL VOLCANOES ERUPT ?

Some volcanoes are always(21)___. They are called active volcanoes. Mount Etna in Italy is an active(22) ____.

Some volcanoes have not erupted since prehistoric times. These are(23)____ extinct volcanoes. Most of the

Hawaiian Islands are extinct volcanoes. These volcanoes(24)____ have a hot spot under them. They(25)___erupt

anymore. Some volcanoes have not erupted for a long time,(26)____ they could erupt again. These are called dormant

volcanoes. (dormant : temporarily inactive)

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UNIT 9. NATURAL DISASTERS

Scientists try to figure out(27)____ volcanoes will erupt. Studying volcanoes is hard and dangerous work.

Scientists drill into volcanoes. They(28)____ maps of the inside of the volcanoes. They use satellites to study

volcanoes (29) ____ space. Scientists have been able to predict a few eruptions. But it is not(30)___ to tell what a

volcano might do.