We ________ the difficulty together，but why didn't you tell me?
| A．should face | B．might face |
| C．could have faced | D．must have faced |
Look! Every player in our team is doing their best. It seems ________our team is going to win.
| A．even if | B．if only | C．as if | D．only if |
After the explosion, the roads are full of__________ people leaving the city.
| A．afraid | B．frightened | C．frightening | D．scary |
______ 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 |