我就担心丧失机会。不抓呀,看到的机会就丢掉了,时间一晃就过去了。()
Intheoriginaltest,alltheanimalsinatestgrouparegivenasubstance_______halfofthemdie
Perseveranceisakindofqualityandthatis_______ittakestodoanythingwell.
Idiomsnominalinnaturehavea(n)______asthekeywordineachandfunctionasanouninsentences.
Weareinterestedintheweatherbecauseit_______ussodirectly—whatwewear,whatwedoandevenhowwefeel.