I’ll telephone you as soon as Tom ________ here.

I’m sure that I will ______ finish the work on time.

This study shows that ______language may differ，the order in which young kids learn the parts of speech appears to be the same across different languages

Jane looks really tired and sleepy.— I’m not surprised at all. She often too late and hasn’t enough sleep.

It’s clever _____ her to work out _____ manydifficult math problems.