There are too____ fish and too ___water in the sea .
| A．much, much | B．much, many | C．many, much | D．many, many |
We can’t do well in exams we study hard.
| A．if | B．and | C．since | D．unless |
As a student, it is your to study hard.
| A．duty | B．mistakes | C．notes | D．challenge |
When I have problems I often ask my father .
| A．to helping | B．help | C．for help | D．to help |
Can you tell me the best way the problem?
| A．solve | B．solved |
| C．to solve | D．solving |
We must learn how these “problems” “challenges”.
| A．change in | B．change，into |
| C．to change , into | D．to changed, into |