—How long _______it _______ you to work out such a difficult problem? —About thirty minutes. A. did… take B. does… take C. did…cost
傍晚你在学校门口遇到老师, 你应该说 。A. Good afternoon B. Good morning C. Good evening
中号的缩写是 。A. L B. S C. M
字母“ Kk” 和 字母 “ ”具有相同的音素。A. Bb B. Hh C. Cc
--Nice to meet you. -- ________________A. Nice to meet you, too. B. And you? C. Thank you.
–Do you think travelling is good ____us?--Yes, I think so. It’s good to relax ______visiting interesting places.