While watching television, .

We all find ________dangerous to skate on the thin ice.

The light of this room was _____ dim (昏暗的) for Tom _____ read last night.[ ]

Yesterday I was late _____ school because the traffic was heavy. [ ]

Lingling says Miss Yu has gone to Shanghai, _____ that be true?—It _____ be true because I saw her in the office just now.