In recent years,_ __global warming is becoming__ _concern for people all over the world．
| A．the; the | B．不填；不填 | C．不填；a | D．the; 不填 |
The teaher told his student ___ any noise in class.
| A．to not make | B．not to make | C．to make | D．not making |
___ us has a bike.
| A．No of | B．Not of | C．None of | D．Not |
When you are in the lab, you should ___ teacher’s instructions.
| A．follow | B．give | C．receive | D．listen |
The bread ___ bitter.
| A．is tasted | B．was tasted | C．tastes | D．eats |
His father had only a little money left ___ every month.
| A．in the end | B．to the end of | C．at the end of | D．at last |