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a) were stolen c) has been stolen b) have been stolen d) was stolen 2. This company ... millions on computers but it doesn't seem to become more efficient. a) spent c) will spent b) had spent d) has spent 3. We had to wait until the light ... to green. a)change c)changes b) will change d) changed 4. I head the news on the radio while I ... home yesterday evening. a) drive c) had driven b) was driving d) drove 5. Before I left the house it ... to rain and I had to take my umbrella. a) started c) had started b) would start d) start 6. I was surprised that you ... the football match on television. a) hadn't watched c) don't watch b) haven't watched d) aren't watching 7. When Columbus landed on San Salvador, he ... where he was. a) knew c) doesn't know b) didn't know d) hadn't known 8. At one time people believed that Columbus ... America. a) discovers c) had been discovered b) discovered d) had discovered 57
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