There are a small number of people involved，possibly ________ twenty.

As a typist, the most important aspect of the job is to be able to type quickly and _____.

 Running a company is not ______ a matter of hiring people ----they also need to be trained.

The hotel is almost finished, but it _____ needs one or two weeks to get ready for guests.

 With more and more farmers moving to cities, an inadequate labor force is    becoming a major factor affecting the country's grain output.