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36
IN THE LABORATORY....
a. 'Haven't you left yet
? '
b. 'No. I've been here ______________ 8.00 this morning.'
c. 'Have you checked the results of the experiment _____________?’
d. 'Yes, I've _________________ done that.'
e. 'We've worked on this project _________________ three weeks. Unfortunately we
haven't discovered anything interesting __________________ ‘
f. 'No, nothing has happened _________________ last Tuesday.'
g. 'Yes, I know. I've ___________________ seen your report.'
h. 'So I'm going to do the experiment again. But I haven't started it ____________’
i. 'Don't bother. I've ______________ started it. I haven't checked _____________,
but I think we're going to get the same results.'
5. Complete the sentence with have been or have gone.
a. Two scientists from a laboratory in Oxford a have gone
to Antarctica, and will stay
there for three months. They b__________________ there to investigate the effects
of global warming on the polar ice. Colleagues in Oxford, who c________ to
Antarctica on earlier expeditions, will keep in touch with them by radio.
b. A team from London has arrived in China. They d______________ there to join a
project which is searching for the fossil remains of dinosaur eggs. 'We e
(not)________________ to China before,' said team leader Mark Jones, 'though two
of us f __________________to the USA where there is a similar project.'
c A dangerous spider is missing from a private zoo in Manchester. 'Herbie is a
Brazilian wandering spider, and we're not sure where he g _______________, said
spokesperson Anne Graham. 'He only arrived in the zoo last month, so he h (not)
______________ here long. A lot of children i____________________ to the zoo in
the past few days, and we are worried that someone has taken Herbie, or that he j
_________________out in somebody's pocket, and they don 't know about it.'
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