It was thought that the accident was caused by human error. 

We haven’t heard ________ the result was.

It ________ easy to paint pictures if you knew how to.

There was no alternative for them but to look for a new flat. 

She regretted to tell him that.............

Why do the band always practise at Ben's house?

When I arrived, they were having dinner. 

She wanted to know             in my spare time. 

Nam didn't go to the party because he __________.

Aitchison prefers models who don't…......

He can make change in his timetable when he wants to. It means that he's got a……….timetable. 

The rivers can be…………..by chemicals. 

Tom didn’t hand in the assignment, nor,                

I _________ my English a lot since the last seminar.

The man who I am married to is my _________.

The reason __________ I have continuted to work in civil service is the job security.

I'm very tired - I ________ all morning.

He last had his blood tested ten months ago.