40 1) do you often wtite your cousin jack? 2) can these children write english? 3) when does mary come home after classes? 4) can you give me your adress? 5) who can spell "understand" english? 6) don't put the plant the table, put it the windowsill. 7) go bed, john, it's your bed time. 8) can you write "think" the blackboard? 9) give that box me, jerry! 10) meet me the bus stop.
2) in;
3) -;
4) -;
5) in;
6) on, on;
7) to;
8) on;
9) to;
10) at.