Put the verbs in brackets into the present simple or the present continuous.
1.They....(work) on an important project at the moment.
2.I......(see) Tom tomorrow after work.
3.This shop......(sell) rare books.
4.Sue.....(know) a lot about computers.
5.A lot of tourists.....(visit)London at this time of year
6.The space shuttle..............(take off) this afternoon We can watch it on TV
7.It.........(cost) a lot of money to fly to Australia