Ответ:

She can run as fast as champions do

i could be an engineer, but i became a doctor

may i go out for a second?

i might do this task by the end of the evening

i must finish reading this book by the end of the summer .

he has to do my homework now, can't go with you.

we ought to pass this exam.

shall we go to the party this night?

you should go to bed right now. it's time to sleep already.

we will go the flea market tomorrow and buy some products there.

i would become a doctor!