1. The boy acted ____ he had never lived in Canada before.
A. as though B. even if C. as D. since
2. If you were old enough, I ____ you to go there yesterday.
A. will allow B. should allow C. would have allowed D. had allowed
3. The secretary suggested that they ____ the men in at once.
A. had brought B. should have brought C. brought D. bring
4. If we arrived here ten minutes earlier, we ___ the bus.
A should have catch B. would have caught C. had caught D. would catch