在矿产资源方面，有的国家特别突出。如马来西亚是世界最大的_____矿国。南非_______产值和出口量一直居世界第一位。
锡；金刚石
The moment I completed the 800- meter race in the sports meeting, my legs _______.
A．gave out
B．gave away
C．gave in
D．gave up
The grass seeds which were sown in Spring are beginning to ________.
A．come out
B．come up
C．come over
D．come in
