Fill in the gaps with an appropriate form of the verb in brackets. 1-At the beginning of the experiment, the chemicals (place) in the beaker. 2-In medieval times the earth (believe) to be flat. 3-Up until now students (allow) to wear what they want, but the new head teacher has decided to introduce a uniform. 4-I can't drive you to the airport because my car (service) tomorrow. 5-Next year the new theatre (open) by some of Britain's biggest acting stars. 6-It (expect) that the President will resign due to the recent revelations. 7-Chocolate (make) from the bean of the cacao tree. 8-This report (claim) that there is corruption throughout the company. 9-Several students (know) to have cheated in their exams. 10- People need (encourage) to use public transport if we want to reduce our carbon emissions. 11-I went on holiday because I really needed (take) a break.