----Jack can’t concentrate on his lessons recently.
----Yes, that might _____ his low score in the last test.
| A．stand for | B．apply for | C．account for | D．call for |
相关试题
Winning is usually a cause for celebration, may not be so for US president Barack Obama, won the Nobel Peace Prize on October 9.
| A．it ; which | B．which ; which | C．which ; whom | D．which ; who |
Jim didn’t come back untill 12 last night, so his father very late waiting for him.
| A．stayed up | B．stayed away | C．stayed over | D．stayed ahead |
She brought with her three friends, none of I had ever met before.
| A．them | B．who |
C．whom | D．which |
The how-to book can be of help to wants to do the job.
| A．whoever | B．no matter who | C．whomever | D．who |
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