If you try to smile _______ life, you’ll always be _______ a good mood.
A. in, in B. at, in C. in at
Our teacher often asks us _________ questions in groups.
| A．discuss | B．discussed |
| C．discussing | D．to discuss |
In a green school, everyone agrees to be _______ about the environment.
| A．careful | B．honest |
| C．nervous | D．rude |
Neither John nor I _______ good at football. We hope to practice it well.
| A．be | B．am | C．is | D．are |
Lisa was so careless that she made many spelling ________ in her homework.
| A．plans | B．jokes |
| C．grades | D．mistakes |
________ fine weather today! Why not go out for a walk?
| A．How | B．How a |
| C．What | D．What a |