Speculating+about+present+and+past;

Speculating: present, past and future
Underline the correct answer.
 * 1) **You mustn't/can't/be tired. You haven't done anything today.[[image:http://www.oup.com/images/elt/adultlist/exercise_transparent.gif caption="score"]] **
 * 2) **Paul could/canbe ill. He didn't come to the class today.[[image:http://www.oup.com/images/elt/adultlist/exercise_transparent.gif caption="score"]] **
 * 3) **We must/might/be going to Italy next summer, but we haven't decided yet.[[image:http://www.oup.com/images/elt/adultlist/exercise_transparent.gif caption="score"]] **
 * 4) **They don't look very happy. They must/can't have been arguing again.[[image:http://www.oup.com/images/elt/adultlist/exercise_transparent.gif caption="score"]] **
 * 5) **Remember to take an umbrella. It could/must rain later.[[image:http://www.oup.com/images/elt/adultlist/exercise_transparent.gif caption="score"]] **
 * 6) **I don't know where Sarah is. I think she can/may have got lost.[[image:http://www.oup.com/images/elt/adultlist/exercise_transparent.gif caption="score"]] **
 * 7) **Why didn't you tell me you were coming? I must/could have met you at the station.[[image:http://www.oup.com/images/elt/adultlist/exercise_transparent.gif caption="score"]] **
 * 8) **This parcel might/ must be for you. It's got your name on it.[[image:http://www.oup.com/images/elt/adultlist/exercise_transparent.gif caption="score"]] **