To make sure of your success in the coming speech contest, first of all you should know your_____
. _______ his mother, the baby could not help _______.
_______ the news of his father's death, he burst into tears.
I searched for my wallet and it wasn't there. At first, I thought I _______ it at home. Then I remembered _______ it out to pay for the taxi.
The thief drove as fast as he could to escape ________ by the police.
I delayed _______ your letter because I had been away for a week.