﹣﹣﹣Dad,I can't find my school ID card.Did you see it?
﹣﹣﹣No,I didn't.I think you ______ it!( )
lose
will lose
have lost
are losing
I found________difficult for them to get there on time.
Your English book is on the floor.Please________.
Susan used to________to school,but she is used to________to school now.
I think every student should go to school________,but some of them are always late.
To keep safe,everyone________to wear a seat belt in the car.