One of the things that preoccupies test designers and teachers alike is _____ has been called the washback or backwash effect.
Awhy
Bwhom
Cwhich
Dwhat正確答案
答案與詳解
為什麼答案是 D
what = the thing which，本身含先行詞，引導名詞子句作 is 的主詞補語，子句內又當 has been called 的主詞，結構完美。
載入中…
