广东36选7好彩3开奖奖金多少 www.oabxa.com I can't say...
1. I can't say for certain.
2. I can't say who did the best.
3. I can't say with any certainty that eating less can be a cure for obesity.
A: So who do you think will win the NBA championships?
B: I really can't say. Both teams this year seem really good.
A: Hey there's a game on tonight. You want to watch it with me?
B: That sounds great! Can your brother watch it with us?
A: Well I can't say. He said he'd be home late from work.