— I can’t decide __________or not I should encourage my son to be a volunteer.
— Why not? It will make him more helpful.
| A．if | B．whether |
| C．how | D．why |
We are happy that our country has developed___ these years than before.
| A．quickly | B．less quickly |
| C．more quickly | D．most quickly |
—Bob, how are you feeling today?
—Much___. I don’t want to eat anything.
| A．better | B．worse | C．healthier | D．good |
Taiwan is ___ the southeast of china.
| A．at | B．on | C．to | D．in |
There are more than two___ languages spoken in Nigeria.
| A．hundreds | B．hundreds of |
| C．hundred | D．hundred of |
—Are you ___ American or English ?
—English .we are working in Wuhan.
| A．a | B．／ | C．the | D．an |