Great attention must be paid ______ welfare, especially in the poor area.
| A．develop | B．to develop | C．to developing | D．developing |
I lost my ticket, but______ the travel agent gave me another one.
| A．actually | B．firstly |
| C．luckily | D．exactly |
Nathan likes his job because he ______enjoy the beauty of nature.
| A．can | B．must |
| C．should | D．is supposed to |
—The scarves are all beautiful. I can’t decide which one to choose.
—Oh,look at this red one. I think it’s______.
| A．beautiful | B．more beautiful |
| C．the most beautiful | D．less beautiful |
—Ben and Sue aren’t home, are they?
—No.They _____to London on business.
| A．have gone | B．go |
| C．have been | D．will go |
There are lots of _____that students have to follow in school.
| A．exercises | B．problems |
| C．skills | D．rules |