–Has Mike received his mother’s mail?–Yes, he signed for it _________ this morning.A. in person B. in fact C. in silence
Please ________ your cigarette. It’s bad for others on the bus.
Which sign means you can’t drop litter?
We ________ not to go that way because the road ________.
I used ____ papers and watch TV after dinner. But now I’m ________ a walk.
We should be strict _____ ourselves ____ our work.