“一粒沙子是松散的,可是它和水泥、石子、水混合后比花岗岩还坚硬”。这说明
The old man was _______ sad _______ say a word when he heard the bad news.
—Why do you like living in the countryside? —Because there’s _______ noise and _______ cars there.
—Would you please pass me today’s newspaper? —_______
Your team lost the game, but you shouldn’t _______.
—Do you often help your cousin with his English? —No. He learns English _______.