题目内容
Where ( ) you ( ) these days?(have been to, have gone to, have been in , have been)
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Has Jim arrived yet?Yes, he ( ) here for several days?(have been to, have gone to, have been in , have been)
Where is Peter? I don't know where he ( ). (have been to, have gone to, have been in , have been, has gone)
MARPOL公约附则I的特殊区域有_____。①波罗的海区域②红海区域③黑海区域④西北欧区域⑤南部南非区域
MARPOL73/78附则Ⅰ要求:_____船舶应参照其机型和航程长短,设置一个或几个足够容量的舱柜,接收本附则要求不能以其他方式处理的残油(油泥)
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