Researchers plan to continue monitoring and testing the children. They want to know _____ school performance is affected over a long time.
Aalthough
Beven
Chence
Dif正確答案
答案與詳解
為什麼答案是 D
if 在此引導名詞子句，表「是否」，作 want to know 的受詞，語意為「想知道學業表現是否長期受影響」，語法與語意皆正確。
載入中…
