It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off.
| A．may | B．can | C．will | D．shall |
Compared with the price of that store，the price of this one sounds________—all the goods are good value.
| A．considerable | B．reasonable |
| C．available | D．sensible |
Although metals ________widely in qualities such as strength and hardness，they all have certain qualities in________.
| A．vary；general | B．differ；common |
| C．react；particular | D．refer；detail |
________him that she would fail as she was so able and worked so hard.
| A．It never occurred to | B．That never occurred to |
| C．It never occurred with | D．That never occurred for |
____ she finds out that you’ve lost her book?
| A．What about | B．How about | C．How if | D．What if |
In our school students are according to how much they know and how old they are.
| A．classified | B．combined | C．listed | D．made |