44) I was so amazed by the news that I don’t know what to say.
45) I learnt to ride a bicycle when I was six years old.
46) He carries on as if he were the boss.
47) He glanced out of the window for a moment and then went on working.
48) He does not feel like playing tennis because he’s out of condition.
49) Would you mind paying for the tickets in advance?
50) She chose some very pretty wrapping paper for the present.