To make members of a team perform better, the trainer first of all has to know their ______ and weaknesses.
We ____ on this project for four hours. Let’s have a rest.
Internet shopping is really ____ when people are sure of its safety.
Tired, Jim was fast asleep with his back ____ a big tree.
To tell ____ truth, his coming is really ____ big surprise to most people present at the party.
In the last few years thousands of films all over the world.A .have produced B. have been produced C. are producing D. are being produced