惠勒入选这支队伍是十拿九稳的事。

Wheeler is ___a ___safe ___bet for a place on the team.

黑色被认为是任何正式场合的稳妥选择。

Black is considered ___a ___safe ___bet for any formal occasion.

投资蓝筹股永远是稳妥之选。

Investing in a blue-chip company is always ___a ___safe ___bet.