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I hope we....on time
1.arrive
2.will arrive
3.are arriving
4.will be arrive
#2 If you.....late,we.....without you
1.will arrive/go
2.wii arrive/will go
3.arrive/will go
4.arrive/go
#3 Helen....my best friend since we.......school
1.has been/started
2was/started
3.is/started
4.has been/has started