Tom ________ the newspaper and handed it to me.[ ]

________ you do more reading practice, I’m sure your English will be greatly improved.

It was snowing hard_______we had to stay at home and watch TV.

The engineers are so busy that they have zero time for outdoor sports activities, ________ they have the interest.[ ]

_____ the three elements of productive forces, namely, the people, the means of production and the subject of labor, the people is that most critical