He(to answer)

______________every question correctly since the beginning of the

tournament. When he (to arrive)_________here two days ago, hundreds

of fans (to wait)_______________at the station to welcome him. Since

his arrival he (to read)_________________encyclopedias in his hotel

bedroom. If things (to go)_______well for him, he (to become)

___________the first prize winner. He (to have)__________to reply

to seventeen thousand questions tomorrow and no meal breaks (to plan)

1)answers 

2)arrived 

3)were waiting

4)had read

5)would go

6)would become

7)would have 

 в ответах не уверен,ибо не знаю,какая точно это тема)

Has been answering (since-признак Perfect)

Arrived (When-признак Past Simple)

Were waiting (Прерваное действие-одна из речевых ситуаций Past Contineus

Has been reading

Go (1 conditionals)

will become (1 conditionals)

will have to

plans