“doubtfully”造句，怎么用doubtfully造句

Well, it seems a weary number of hours,' she muttered doubtfully: `it must be more.

Pike's brows arched doubtfully.

The fox looked at the little mosquito doubtfully.

If you ask a caterpillar whether it thinks that it will one day sprout wings and fly, it will look at you very doubtfully.

Jastrow glanced doubtfully from the Palestinian to his niece.

"Yes," said King Edmund doubtfully.