The tallest tower in the world……………… built in 2005. A-was. B- were. C- is. 2. I will ………. In Canada next summer. A- have be. B- have been. C- have. 3. The prefix (re-) means ………………… . A-again. B- under. C- much. 4. The prefix (under) means ………………… . A-again. B- under. C- much. 5. The meeting ……….. Delayed until night due to raining. a-was been. B- is been. C- has been.