Question

【題目】I don't become a serious climber until the fifth grade, ______ I went up to rescue a kite that was stuck in the branches of a tree.
A.when
B.where
C.which
D.why

Answer 1

【答案】A
【解析】句意：一直到五年級(jí)我才成為一名認(rèn)真的攀爬者，那個(gè)時(shí)候我為了拿回掛在樹梢上的風(fēng)箏而爬上了樹。the fifth grade先行詞，定語從句缺少狀語，故用when來引導(dǎo)，故選A項(xiàng)。