—Those scientists invented a robot to care for kids!—It’s not surprising. They ________ wonders all the time.[ ]

_____you _____ out the problem, Sam— Not yet, but I’m going to.

Qomolangma is _______ high _______ very few people can climb up to the top of it.

The weather report said there’s rain today —But I don’t think the football match will be put off_____

__________ difficult the task may be, we will try our best to complete it in time.