A — toll free B — insert here C — open here D — hands wanted E — hands off F — keep in dark place G — in shade H — guard against damp I — for use only in case of fire J — keep top side up K — seat by number L — no admittance M — dogs not allowed N — Road up. Detour. O — handle with care P — reduced speed now ( )免费通行 ( )请勿倒立