Which underlined letter pronounces differently from the others?( )
A.dogB.polluteC.knockD.strong
﹣Mum ,I've got the first prize in the speech competition.
﹣_____, my boy! ( )
A.Well doneB.My pleasure
C.Good luckD.It's hard to say
﹣ It's said that shopping online is safe.
﹣ ____.You'd better be careful.( )
A.I agreeB.That depends
C.I think soD.No problem
The weatherman says a rain shower ____ this afternoon in the south.( )
A.expectsB.expected
C.is expectedD.was expected
Yuan Longping is ____ regarded as the greatest scientist in rice planting.( )
A.suddenlyB.patientlyC.hardlyD.generally
Little Jack has learned to do lots of things on his own, ____ he is only four years old.( )
A.ifB.thoughC.forD.since