题干
我爷爷如此盼望着麋鹿归来，以至于在南海子麋鹿苑看到它们时，他抑制不住激动，哭了起来。(contain, burst)
My grandfather longed for the return of the Milu deer so much that he ____ when he saw them in the Nanhaizi Milu Park return to China.
答案(点此获取答案解析）
could hardly contain his excitement and burst into tears
