He never to his sister.
Being a _________ person, Mrs Li wouldn’t let anyone or any difficulty stop her.
________ he made up his mind to take a trip to Europe?
The number of the students in our school ________ about 3000 and ______ them study hard.
Rather than ______ on a crowded bus, he always prefers _____ a bicycle.
He has devoted most of his time and energy _______ a cure for the disease.