GRAMMAR TEST 19.06.20151. We................................snake wells off the Brunei coast since 2005.a. Drillb. Drilledc. Have drilledd. Have been drilling2. Our company first................exploring the Brunei field a long time ago.a. startb. will startc. startedd. was starting3. How do you .....................computers are used in this method?a. thinkb. thoughtc. are thinkingd. are thought4. The first portable pacemaker..............................in 1957.a. inventedb. was inventedc. was inventingd. invent5. I guess you use barcodes......................the days sales in your store.a. checkingb. to checkc. is checkedd. was checking6. Barcodes .......................by airlines to issue boarding passes.a. usedb. are usedc. were usedd. have been using7. Here is a brief outline of how a laser machine.............................a. workedb. to workedc. worksd. has been worked8. The Collider was.......................in September 2008.a. shut downb. shuted downc. touched downd. broken down9. One day, while he...........................a bath, he noticed that the level of water in the bath tub ................as he got in it. a. was having/roseb. had/was risingc. had/rosed. is having/risen10. This famous invention .......still...............for irrigation all over the world. a. was.........usingb. is........usedc. was ..........usedd. has been using11. The primary component of this fabric was ultrafine glass filaments.................were twisted into yarns.a. whob. whichc. whomd. whose12. ...............both systems use computers, sensors and actuators, they differ in one important way. a. becauseb. whilec. althoughd. however13. The MegaFarma pharmaceutical company .........just................that they are recalling all stocks of their new drug. a. has .....announcedb. announcedc. is .....announcingd. has been.......announcing14. The equipment has to be capable of ..................the users weight by up to 80%.a. reduceb. was reducedc. has been reducedd. reducing15. How long ................................jobs within the petroleum industry?a. has he doneb. has he been doingc. is he doingd. was he doing16. They ........currently .............information about the drug from thousands of doctors.a. are..........gatheringb. has been........gatheringc. have been.........gatheringd. are.......gathered17. The valve at the top of the tank allows the fluid .................., while the one at the bottom permits it to escape.a. enteringb. to enterc. is enteringd. has entered18. As for the future, to prevent such accidents from...............again, the whole meltdown warning system was given a major upgrade.a. happeningb. to happenc. happend. happened19. While..................the component, turn the board over.a. holdb. to holdc. holdingd. held20. Next, each damaged magnet was ..................up to the surface.a. liftb. liftingc. to liftd. lifted