—How long may I _____ the English workbook?—For two weeks.
Now my father __________ his bike to work every day instead of driving.
By the end of the last month, I _____________ all the CDs of Justin Bieber.
You _________lose your way if you walk alone in the mountains at night. A. may B need C. should D. ought to
We didn’t start our discussion __________ everybody arrived.
Take the exam carefully, _______ you won’t get full marks.