Peter enjoyed _______ at his birthday party last night.[ ]
A. he
B. him
C. himself
D. his
答案:C
同学们参加科技小组的有21人,比参加绘画小组的少25%,参加绘画小组的有多少人?(用方程解答.你还会用算术方法解答吗?)
Bears often hide themselves in places ________ can’t be found by hunters.
A.in which
B.where
C.that
D.不填