Did he ____ to sleep late last night? [ ]
A. went
B. go
C. goes
D. going
答案：B
Linda said the moon _____ round the earth. [ ]
A. travelled
B. has travelled
C. travels
D. had travelled
南极大陆上已发现的矿产资源中，储量丰富的是[ ]
A．煤、铁
B．石油、天然气
C．铜、金
D．锰、铂
