He is sure____his success.A.at B.of C.in D.on

He is sure____his success.A.at B.of C.in D.on He is()holiday()Beijing.a:on ,at.b:in,in.c:on,on.d:on,in He is riding____ low speed on the road A.at B.in C.on D.to He is ___ holiday in Beijing.A.in B.on C.for D.at There is a discount ()last year is cards.a:in,b:on,c:of,d:at he is working ( )a model plane now. a.on b.at c.for d.in shanghai is __the east of china A.on B.in C.at D.of He will come_____the morning of July 1 A at B in C on D for He was born____May,1989 A.in B.at C.on D.of He left ___ the morning of September tenth.A.in B.at C.on D. This is a picture( )a hill.选择A on B in C at D of This is a picture () a hill.a on b in c at d of