People try to avoid public transportation delays by using their own cars, and this __________ creates further problems.
It is in Steven Spielberg' s first film, Jaws, ____ a big white shark attacks swimmers ____ are spending their holidays in a small village by the sea.
There were many students and teachers at the party yesterday. I looked for two seats to sit down with my friend, Tim, but there were ____.
The teacher came to the classroom and demanded ____ what had happened.
Doing your homework is a sure way to improve yor test scores, and this is especially true ____ it comes to classroom tests.
I haven' t seen Mary these past few days. I m afraid she ____ herself for some time.