If you successfully complete a difficult task ________ hard work, you’ll become confident.
You should eat more vegetables_____ cabbages and tomatoes; they’re all good for your health.
Li Yundi, as the famous piano player, has to play _____ concerts and meet fans.
— What _____ does he like best? — He likes running.
It ________ him about 3 hours the homework last weekend.
Yesterday, his neighbor’s hen _________ four eggs altogether.