A. hasn’ t
B. is
C. has
D. isn’ t
第1题:
A.he, it
B.he, them
C.they, him
D.he, they
第2题:
A、doubt whether
B、doubtful
C、doubt it
D、doubtful whether
第3题:
He’s watching TV? He’s ________ to be cleaning his room.
A) known B) supposed C) regarded D) considered
第4题:
A、a natural leader
B、other members like to follow
C、He/she should have the ability of promoting team spirit when times get tough
D、He/ She always possess a positive attitude、
第5题:
Ada: How's the young man?
Bill:______
A、He's twenty.
B、He's a doctor.
C、He's much better.
D、He's Dick.
第6题:
下列原子或离子的核外电子从基态激发到2s或2p轨道,所需能量相同的是 ? ①H , ②He , ③He+, ④Li2+