( he had an accident and ........ To hospital ( took -
was taken - has taken - takes
( a nice story ...... To us ( tells - told - were told -
was told
( i ....... Solve the problem without any difficulty (
can - am able to - may - can't
(it is a fact that greenhouse gases ....... To stop heat escaping ( can - could - needs - are able
( there is .......... Of food in the world , we can feed everyone ( lack - hunger - lot -
plenty
( how ....... Can the earth get ? ( warm - heat -
hot - warming
( the world's oil will run ......... One day (
out - out of
( they are problems that can ......... ( solve -
be solved - solving - to solve
( they .......... Go out.the weather was too bad ( can't -
couldn't
( he ....... Answer the question , he was clever ( can't - couldn't - could - wasn't able
she ...... Food . But she bought ready food ( could cook -
could have cooked - can't cook - will cook )
( dina ....... The piano ( can be played - can to play -
can play - can playing
( you can drive my car , you ........ (
are allowed - aren't allowed