—What were you doing when I phoned you last night?
—I _________my painting and was starting to take a bath.
| A．have already finished | B．was finishing |
| C．had just finished | D．was going to finish |
If you ______ succeed, apply yourself to the job after finding the proper ______ to doing it.
| A．are to; approach | B．are about to; way |
| C．are to; method | D．are going to; means |
—Do you think students’ using mobile phones has any advantages?
—______.
| A．Yes, I think not | B．No, I suppose so |
| C．Yes, just in case | D．Well, it just depends |
Everyone knows that ______ is dangerous to play with fire, but ______ is difficult is to prevent children from playing with fire.
| A．it, it | B．what, what | C．it, what | D．what, it |
Keep in mind that you should try to spend your time on what you find ______.
| A．worthwhile doing | B．worth doing |
| C．worthy of doing | D．worthy to do |
Present ______ the ceremony were the honorable heroes, who were presented ______ awards for their good deeds.
| A．at; with | B．for; for | C．in; to | D．with; in |