— If so, we _______ enjoy a more pleasant life.
—Oh no, I forgot. I ______ her right away.
—Not yet. I _______ it with my classmate tonight.
—Yes. And he _____ in three weeks.
—If it ________ , the school sports meet will be canceled.
—I'm always ________when I don't get any mail.
你觉得那儿的老城怎么样?
我想参观中国的一些大学,因为我希望明年去那里学习。
我想体验一些中国的文化,看看那里的自然美,但我的主要目的是弄清楚哪一所大学才是最适合我的。
人们认为马丘比丘是个有吸引力的中心,每年吸引许多游客。
一旦开始,你就必须继续。
水一开始沸腾,温度就不再升高。
you will have no further difficulty.
一旦你养成了一个坏习惯,你就很难改掉它。
一旦你许下诺言,你就得遵守诺言。
Only then the importance of English.
Only if you are modest make progress.
Only when you understand the question, able to solve it.