I feel very dizzy. Maybe I ________ lie down for a while., could, couldn't , should , shouldn't, Yesterday, Sarah was so ill that she ________ even finish her lunch., could, couldn't, should, shouldn't, You have a high fever; you ________ go to school today., could, couldn't, should, shouldn't, Last week, I had a sore throat and ________ only speak in a whisper., could, couldn't, should, shouldn't, If your cough gets worse, you ________ eat anything spicy., couldn't, could, should, shouldn't, The patient was so weak that he ________ walk by himself., couldn't, could, should, shouldn't, To avoid getting the flu, you ________ wash your hands frequently., could, couldn't, should, shouldn't, I ________ go to the party because I was down with a stomach ache., couldn't, could, should, shouldn't, You ________ eat so many sweets if you want to avoid a toothache., couldn't, could, should, shouldn't, When Grandpa was younger, he ________ run a marathon even with a cold., couldn't, could , should, shouldn't, My sister ________ sleep last night because her earache was so painful., couldn't, could, should, shouldn't, You look pale! You ________ drink some warm water and rest., couldn't, could, should, shouldn't, The medicine worked quickly. I ________ feel the difference in an hour., couldn't, could, should, shouldn't.

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