—I’m leaving on April 30. —So why not come to spend ________ days with me?
The companies are working together to create they hope will be the best means of transport in the 21st century.
We should consider the students’ request the school library provide more books on popular science.
—Is there any possibility you could pick me up at the airport ? —No problem
The how to book can be of help to wants to do the job.
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.