Sam with his friends every weekend.( )
A.skatesB.is skating
C.has skatedD.was skating
He this city when he was eighteen.( )
A.leavesB.doesn't leave
C.left
There a computer and some books on the teacher's desk.( )
is
are
be
We have lunch_____ school from Monday to Friday.( )
on
at
with
Robots usually do work in factories.( )
heavy
heavier
heavily
You can ask some questions by telephone.( )
he
him
his