No one can tell how many sufferings the kidnapped boy ________ when he was rescued yesterday.
| A．had | B．has had | C．had had | D．would have |
______ you eat the correct foods ______ be able to keep fit and stay healthy.
| A．Only if; you will | B．Unless; you will | C．Only if; will you | D．Unless; will you |
Was it through Mary, _____ was working at a high school, ____ you got to know Tom?
| A．who; who | B．that; which | C．who; that | D．who; which |
Robert is said ___________ abroad, but I don’t know what country he studied in.
| A．to have studied | B．to be studying | C．to study | D．to be studyed |
Jane, _______I’ve shared just about everything since the first day of kindergarten, spent the weekend with me last month.
| A．who | B．for whom | C．with whom | D．that |
To enjoy the scenery, Sara would spend long hours on the train ______ travel by air.
| A．as to | B．other than | C．instead of | D．rather than |