---Jack can't concentrate on his study recently．
--- Yes, that might ____ why he did so badly in the last test．
A．answer for B．apply for C．call for D．account for
I can hardly remember any occasions ____ I get caught in a traffic jam in our town．
A．which B．that C．where D．when
Holiday shopping ___be a tiring experience．There are so many places to visit and choices to make．
A．can B．may C．shall D．will
If a book is in French, ____ will be a challenge for me．
A．which B．it C．what D．as
Mrs Green was so pleased ____ her daughter won the first place in the singing competition．
A．as B．that C．when D．if
As a reporter, you should first decide what events ____ before you make some interviews．
A．reported B．to be reported C．reporting D．to report
