It is generally believed that Watson and Crick’s discovery about DNA was ____ beginning of _____ enormous advances in _____ field of genetics.
.— Mom , what did your doctor say ? — He advised me to live_______ the air is fresher .
The weather was bad and the food was terrible , ___the holiday was very disappointing .
.—______ your school life here ? — Yes , but I don’t like_______when we have to do exercise on cold winter mornings .
— I’m thinking of the test tomorrow . I’m afraid I can’t pass this time . — ________! I’m sure you’ll make it .
My uncle now teaches French in a famous domestic university, who _______ in Paris for 6 years.