. ---I am green at everything.---Don’t worry. _____ you get older, you get more experience.A .When B. Till C. As D While
Jack is____smart a boy____he can work out difficult maths problems quickly.
. You’ll have to_____the word in the dictionary.
. The _____ look on his face suggested that it was he who had broken into the house.
In the wartime, the masses devoted whatever they had to ______ the army in fighting against the Japanese.
The books in the largest library of the city could _____ all the information we need for us.