Small sailboats can easily turn over in the water ______ they are not managed carefully.
| A．though | B．before | C．until | D．if |
Students should keep in mind that there’s something more important than _______ fashion for them to seek after in _______ life.
| A．/; the | B．/; / | C．the; / | D．the; the |
_____ comes first will get the prize.
| A．Who | B．Whoever | C．Whom | D．Whomever |
John received an invitation to dinner, and with his work _____, he gladly accepted it.
| A．finished | B．finishing | C．having finished | D．was finished |
Jack described his father, who _____ a brave boy many years ago, as a strongwilled man.
| A．would be | B．would have been | C．must have been | D．must be |
Is it the country _____ you studied English _____ you are going to visit next week?
| A．in which; which | B．where; that | C．that; that | D．which; that |