He employed an able secretary __________ he was able to do his work efficiently[ ]

Your suggestion on how to improve English writing ability is too general. Could you make it more _______?

What a pity! When we got to the cinema, the movie Let the Bullets Fly _________, so we saw only the end of it

Don’t worry about your English. Work hard and you’ll improve it ____.

Jack， is there ______ in today’s newspaper—No， nothing.