You should keep ... the graas

ex6 comple ưith a prepóition
there are a lot of cows and buffaloes..............his farm
student often play socer the stadium
you should kêp...........the graas
nam lives......his brother.......65 tran phu strees
he wants a glass......... lemon juice
they go to school...............bus
.......the left............the house therer is a big tree
what is the diffiẻnt...............two building?
ex10
my mother is alưays busy from mỏningn till night=>my mother is never.............................................
the libararylends books to both student and teacher=>bothstudentand teacher can...................................................
how much is the blue schoolbag=>what is.............................................
mr.lbinh is going to frace by plane =>mr binh
does mai's house have five rooms=>are there........................
ex11
now/she dances/ beautifully/than/ used/=>..............................
hơ long /it take/him/get/ school /every day?=>....................................
we/perfect /wachtTV/read books=>..............................
my pảent /proud/becáue/i get/gôd mark=>........................................
mr ba/often/spend/1hour/play video games/ before/go/bed/=>...............................