bai 4:
A.What......(1).......the girls doing/
B.......(2)......playing
A.Where?
B..........(3)......the garden.Can you see....(4)..?
A.Yes they re'..........(5)............the big tree
1.A.is B.do C.are D.does
2.A.she s' B.they C.them D.they re'
3.A.at B.on C.in D.into
4.A.they B.she C.her D.them
5.A.betwen B.infont of C.over D.near