. Skiing in the Rocky Mountains and sailing in the harbour make Vancouver one of Canada’s most popular cities _____.

People say it is Canada’s most beautiful city, _____ by mountains and the Pacific Ocean.

Because of my poor English I’m afraid I can’t make myself ____．

Millions of people watched that first moon landing on television, their hearts in their mouths, aware of how difficult and dangerous an adventure it was, and what risks had to be ____.

. People used to accept a medieval world view in which human life was of little value ____ with the greatness of God.

The aim of the project is ____ patients to be more independent.

It is generally considered that the key ______a foreign language well is nothing      but practice.

They are forbidden ________,for they are still middle school students.

____ other good students, the teacher thinks , Hank is ___ student.

Lucy is very shy and never speaks _________.
A until speaking             B. unless spoken to
C. unless speaking to      D. only if spoken to