1. my brother ................. into the van ( not/ crash)
2. the boys ................ the mudguards of their bicycles ( take off)
3. the police ................ two people early this morning( arrest)
4. ............... the CN Tower when you ............... in Toronto ?( you/ visit-stay)
5. there .......... an accident in High Street , so we had to use King Street to get to your school( tobe)
chia V ở thì The present perfect or The past simple