Look!The cat

That the cat,_catch a mouse.\u586bwhich\uff1f\u8fd8\u662fwho\uff1f\u539f\u56e0\uff1f

which \u6307\u7269

\u7528\u62ec\u53f7\u4e2d\u6240\u7ed9\u52a8\u8bcd\u7684\u9002\u5f53\u5f62\u5f0f\u586b\u7a7a
1.The cat \uff08has\uff09just\uff08caught\uff09\uff08catch \uff09a mouse
2.I\uff08have \uff09ever\uff08dreamed\uff09\uff08dream \uff09about going abroad
3.\uff08Have\uff09you\uff08heard\uff09\uff08hear\uff09of the singer before?
4.He \uff08has\uff09\uff08left\uff09\uff08leave\uff09his hometown
5.Tom \uff08has\uff09already\uff08lent\uff09\uff08lend\uff09his book to Mary
6.\uff08Have\uff09 they \uff08found\uff09\uff08find\uff09their lost child-- these-- years?
7.His English \uff08has been improved\uff09\uff08improve\uff09a lot in recent years
\u8fd9\u4e9b\u8bcd\u4e00\u822c\u90fd\u662f\u7528\u4e8e\u5b8c\u6210\u65f6\u6001\u4e2d\u7684\uff1ajust\ever\before\already\these days(yaers\weeks...etc)\in recent days\uff08weeks\months\years...etc)

is catching

has caught

has caught

is catching

扩展阅读：look at the monkey ... look at that car ... look at the elephant ... what s this ... look at the dog ... look at the bear ... look at the cat it s fat ... it is big ... it s in the truck ...