1. The more she smiles , ................ she becomes

.A. more graceful B. the most graceful C. most graceful D. the more graceful

2. Hotels have developed …………………… restaurants

.A. as rapidly as B. so rapidly as C. as rapid as D. more rapid

3. Can Tho bridge is the …………………… one in the South of Viet Nam.

A. long B. shortest C. longest D. longer

4. Albert Einstein’s contributions to scientific theory were ................ those of Galileo and Newton.

A. important than B. more important C. the most important D. as important as