Please refer to the before you switch on the engine.
| A．introductions | B．explanations | C．instructions | D．expressions |
_____ seen smoking here will be fined.
| A．Who | B．Whoever | C．Anyone | D．Who ever |
_____ with a good education can apply for the job.
| A．Who | B．Whoever | C．Anyone | D．Who ever |
According to the rules, students must not _____ their books during examinations.
| A．read | B．watch | C．notice | D．look at |
She may have missed the train, in _____ case she won't arrive for another hour.
| A．whose | B．that | C．which | D．what |
I met several people there, two of _____ being foreigners.
| A．whom | B．them | C．who | D．which |