I like _____ in spring when everything turns green and active.
Several weeks had gone by _____ the head of the gallery realized the painting was missing.
The airline has a booklet _____ will tell you most of the important information to Europe.
Students can easily fall behind in their studies ____ they don’t manage their spare time carefully.
He warmly congratulated them on _____ they had achieved in science and technology.
_____ of concrete and steel, the Petronas Towers in Kuala Lampu could provide a better chance of surviving than did the World Trade Centre buildings.