Betty is in China _____ her father and mother. [ ]
A. with
B. and
C. but
D. under
答案:A
Parents are coming back, and you’d better ________these things, or the room is in a mess.
A.put away
B.put up
C.put out
D.put through
引起儿童心肌炎的最常见的病毒是下列哪一种()
A.腺病毒
B.流感病毒组
C.埃可病毒
D.柯萨奇病毒B
E.EB病毒