——What should I wear to attend his wedding party? ——Dress ____ you like.
| A．what | B．however | C．whatever | D．how |
In order to find the missing child, villagers all they can over the past five hours.
| A．did | B．do |
| C．had done | D．have been doing |
The head of the company promised to deal with matters of this sort he returned to his office.
| A．until | B．while |
| C．at the time | D．the moment |
We can never expect bluer sky unless we create less polluted world.
| A．The; the | B．/; the |
| C．A; the | D．a; a |
—rapid progress they have made!
— Right. And it is true the students from other developing countries.
| A．What a; with | B．How a; for |
| C．How; of | D．What; of |
The plane is flying ____ a speed of 500 kilometers an hour ____ the way to Kunming.
| A．with; on | B．at; on |
| C．at; in | D．with; in |