No matter how ______，scientists are eager to know more about it by exploring.
| A．an ocean may be deep | B．deep may an ocean be |
| C．deep an ocean may be | D．may an ocean be deep |
What beautiful photos you have taken! How I wish my parents ________ my travelling with you.
| A．will approve of | B．have approved of |
| C．had approved of | D．must approve of |
A smart leader never hesitates to award or punish someone when he or she _________.
| A．desires | B．urges |
| C．ignores | D．deserves |
Many people in Southwest China are said to have no ______ to safe drinking water last winter.
| A．control | B．access | C．aid | D．opportunity |
You can feel peaceful if you face the world with a ______ heart, and accept who you really are!
| A．grateful | B．flexible |
| C．secure | D．guilty |
—— Sorry, Professor Smith. I didn’t finish the assignment yesterday.
—— Oh, you ________ have done it as yesterday was the deadline.
| A．must | B．mustn’t |
| C．should | D．shouldn’t |