That skyscraper ............................ in 1934. (build)
was built
When the band came on, the audience ................. to shout. (start)
started
If I ............... something, I'd ask the teacher. (not understand)
didn't understand
I ................ anything he says. He often tells lies. (not believe)
don't believe
We ............ just ................. the presents when the guests arrived. (wrap)
had ... wrapped
We ......................... English here since September. (learn)
have learnt / have been learning
Penicillin ................... by a Scotsman. (invent)
was invented
Pete .................. three hours ago. (arrive)
arrived
The office .............. every day. (clean)
is cleaned
How long ........... she ............... here? (live)
has ... lived
If it rains, we ................to the beach. (not go)
will not go / won't go
For the last six months, he .................. a book. (write)
has been writing / was writing
The teacher came in and the lesson ..................... (start)
started
We'll go out as soon as they ................ here. (be)
are
............ you ever ............... eight hours a day? (work)
Have ... worked
I ................... her since she was a little girl. (know)
have known
