Police were sent out to keep the traffic ________ smoothly during the snowstorm.
And there, almost _____ in the big chair, sat her little brother, who never had to be told to keep quiet.
I thought Jim would say something about his school report, but he ______ it.
It is when the plane ______ that you’d better find out at the booking office.
The baby is generally healthy, but every now and then he ______ a cold.
--- Each of the students, working hard at their lessons, ______ the book. --- So have I.