Choose the best alternative. 1. His illness got worse and worse. In the end he go into hospitalfor an operation.A) will have to B) must (c) had to D) ought to have2. You any more aspirins; you've had four alreadyA) mustn't takeB) needn't have takenC) shouldn't have taken D) had better not take3. I've searched everywhere for Bob but I to find him.A) wasn't ableB) am not ableC) haven't been ableD) couldn't4. A: Mrs. Taylor was found dead with a wire around her neck.B: She - strangled.A) had to beB) ought to have beenC) should haveD) must have been5. You__spanked her. She didn't deserve it.A) shouldn't haveB) needn't haveC) mustn't haveD) couldn't have6. A: I wonder who took my alarm clock.B: It Julia. She supposed to get up early.A) might be / IsB) could be / IsC) had to be / wasD) must have been / was7. In a hundred years' time we out of water to drink.A) must have runB) might have been/runC) should have runD) may have run8. If you'd explained your problem to me, to help you.A) was ableB) will have been ableC) would have been able D) could have9. Joe ran all the way. It wasn't necessary. Joe run all the way.A) needn't haveB) need haveC) didn't need toD) doesn't need to10. Tom was serious when he sald he wanted to be an actor when hegrew up. We at him. We hurt his feelings.A) shouldn't have laughed B) needn't have laughedC) mustn't have laughed D) shouldn't have been laughed11. He -hungry. He Isn't eating his food.A) should beB) needn't have beenC) might not have been D) must not be12. All the lights in Terry's room are turned off. He_ sleeping.A) must have beenB) had to beC) must beD) must not be13. Let's go to the seminar. It InterestingA) used to beB) is supposed to beC) must have beenD) needs to be​