----Jack can’t concentrate on his lessons recently.
----Yes, that may ________ why he did so badly in the last test.
| A．answer for | B．account for |
| C．call for | D．stand for |
60. The witch the princea frog once in the fairy tales.
| A．changes; for | B．changed; into | C．changing; into | D．changes; for |
59. ---I’m afraid that I am_________you much trouble.
---No. It’s my duty to do so
| A．making | B．causing | C．catching | D．Putting |
58. Though his classmates are all ahead of him, he is studying very hard to _____ them.
| A．catch up | B．catch up with | C．catch hold of | D．catch sight of |
57. Yesterday I was in the rain on my way back home, and I got a bad could and coughed very badly.
| A．captured | B．arrested | C．caught | D．Met |
56. The shopkeeper _____ the tramp(流浪汉) stealing sweets from the new supermarket and _____ him.
| A．catch; seize | B．caught; seized | C．seized; caught | D．caught; caught |