A. opened B. knocked C. played D. occurred

A. failed B. reached C. absorbed D. solved

I accidentally _____ Mike when I was crossing a street downtown yesterday.

1. lost touch with                                            B. paid attention to

     C. caught sight of                                            D. keep an eye on

The old houses were _____ down to make way for a block of flats.

1. banged        B. hit                    C. knocked           D. put

My father decided to _____ smoking after he had been smoking for ten years.

1. take up       B. put away                   C. get over            D. give up

The forecast has revealed that the world’s reserves of fossil fuel will have _____ by 2015.

1. taken           B. caught up                  C. used off            D. run out

It is very important for a firm or company to keep _____ the changes in the market.

1. pace of                 B. track about      C. touch with       D. up with

My mother told me to _____ for an electrician when her fan was out of order.

1. send                      B. write                C. rent                  D. turn

They _____ all day swimming and sunbathing at the beach.

1. passed                  B. used                 C. spent                D. occupied

How long does the play _____?

1. last                       B. stretch              C. extend              D. prolong