I’ll do whatever I can _________ my English.
| A．improve | B．to improve | C．improving | D．to improving |
We are interested in the weather because it _____ us so directly ------ what we wear, what we do, and even how we feel.
| A．benefits | B．guides | C．affects | D．effects |
An early typewriter produced letters quickly and neatly; the typist, _____ couldn't see his work on his machine.
| A．however | B．therefore | C．yet | D．although |
The reason why he adapted to the new situations quickly is that he has a _____ attitude.
| A．changeable | B．alternate | C．movable | D．flexible |
Motorists _____ of speeding may be banned from driving for a year.
| A．convicted | B．arrested | C．charged | D．judged |
He was not _____ to the club because he wasn't a member.
| A．allowed | B．admitted | C．permitted | D．approved |