Though the long-distance runner ______ hisprevious record last month, his trainer let him ______ its speed as hewent around the curve.．

Please check the list carefully ________________ make mistakes.

I don’t know if Mr. Smith ____. If he ___, I will tell you.

We ______ speaking English at the English corner to improve our spoken English.

It is _______ he often fails inexam_______ makes his parents worried about him