_____is too hard _____ a good solution to this problem.
—A Yangzi Evening Paper, please!—Sorry ,there is the last one left here, would you like to have ______?
The boy has _____ poor eyesight, but he has _____ good sense of humour.
--I called you yesterday morning ,but no one answered.--Oh, I in my garden.A. watered the flowersB. am watering the flowersC. was watering the flowers
-- Excuse me, sir, smoking in the gas station. -- Oh, I'm really sorry.A. doesn't allow B. isn't allowed C. aren't allowed
-- The boy can speak both English and Japanese ______ he is only ten. -- Wow, what a clever boy! A. if B. because C. though