The general has drawn up a plan to ______the enemy(敌人).
– This pen is too ____. Can you show me a cheaper one? -- What about the blue one? It’s cheaper.
– Have you seen the film named Avatar(阿凡达)? -- Yes, I _____ it with my friend last weekend.
–What are you busy with these days? -- I ______ study for the coming English test. You know, I’m not good at it.
– _______do you know our country will build the space station? -- I’m not sure. Maybe in six years or seven.
-- When did your mother know about your score? -- She knew nothing _____ I told her.