1.   Babies are always bumping their heads.

2.   Chris bumped his head again while snorkelling and now has rather an impressive bandage!

3.   Getting up from rummaging in the wastepaper basket, she bumped her head, very lightly, on the sink.

4.   He went on to bump his head on a beam.

5.   I had bumped my head so hard that I began to see stars.

6.   I went up slowly, taking myself as high as I could without bumping my head against the ceiling.

7.   She tried to get up on all fours, and bumped her head on the underside of the bed.

8.   The roof was so low he bumped his head.

9.   He bumped his head on the low beams.

10.   He bumped his head on the low beams of the house.