In the summer of 1996, everything must have been going perfectly for the twenty-five-year-old Texan cyclist.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

He should have gone earlier but he had ignored the pain so that he could continue racing.

The modal verbs express .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

When he went to the doctor that day, he could not have known what was about to happen to him.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

There was a 60% chance he would survive and 40% chance he might die.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

In the next few months, he had to have two operations and to undergo chemotherapy treatment.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

He lost weight and felt so tired that he had to sleep twelve hours a day.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

During periods when he did not have to have chemotherapy, he rode his bike 30 to 50 miles a day.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

This young man must have a special kind of drive.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

He does not have to worry about proving himself any more.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability

However, we must not forget that he is different from other stars.

The modal verb expresses .....

• obligation

• lack of obligation

• speculation

• prediction

• possibility/ability