A. to know B. to be knowing C. to have been knowing D. to have known 4、AIDS is said ___ the biggest health challenge to both men and women in that area over the past few years. A. that it is B. to be C. that is has been D. to have been 5、Robert i...
4. There is no hurry (to do sth) 句式。其意为“不用急(于做某事)”: There’s no hurry to return the book. 现在不急于还书。 There’s no hurry, so do it slowly and carefully. 不用赶时间,要慢慢细心地做。 5.There’s no need ( for sb. ) to do sth. …结构...
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