“You are to blame for our failure. You can’t making mistakes in this game,” the coach declared.
In that school, English is compulsory for all students, but French and Russian are ______.
Would you like tea or coffee? --_____, thank you. I’ve just had some water.
We can never expect ____ bluer sky unless we create _____less polluted world.
—Can I use your laptop for a while? —; any how I am not using it now.
What the science teacher does and says of great importance to college students.