Our monitor always helps other students ____ their lessons and he never says any bad words _____ others.
| A．in , with | B．to , about |
| C．with , about | D．with , to |
Don’t forget __________ the lights when you leave the classroom.
| A．turning off | B．turning on | C．to turn off | D．turn off |
My hair is shorter than ___________.
| A．him | B．she | C．hers | D．her |
______ important for us ________English well.
| A．It’s, to learn | B．This is, to learn |
| C．It’s, learning | D．This is, learning |
—Where are you going ______ your next vacation?
—We decided ______ Europe.
| A．on, for | B．to, on | C．on, to | D．for, on |
Does Bob go to workbus or foot?
| A．to; by | B．with; on | C．by; on | D．on; on |