Question

【题目】We are really ________ to the doctors and nurses who fight against COVID-19.

Answer 1

【答案】thankful/grateful

【解析】

句意：我们真的非常感谢抗击新冠肺炎的医生和护士。

be动词are后应跟形容词做表语，根据句中“the doctors and nurses who fight against COVID-19”可知，这里对他们表示感谢；thankful和grateful均为形容词，意为“感激的，感谢的”。故填thankful/grateful。