tense3

8.It;s time for class now. Why haven't you left here__d____?
a.already b.also c.ever d.yet

9.We__b_in a low voice when someone suddenly broke into the room
a.were singing b.are singing c.sang d.sung

10.Were had your brother studied before he____d___to college in Hong Kong
a.goes b.had gone c.went d.has gone

11.Don't touch that wall! It_____c___painted
a.had just been b.has just been c.was just been d.has just

8.b
9.a emphasize
10.c. sentence structurre
11.c. passive voice

2007-01-26 20:36:36 補充：
sorry11. it has been printso just is emphasizing.8.yet因為中文的意思係話點解你仲留係度。

8.It;s time for class now. Why haven't you left here_d______?
a.already b.also c.ever d.yet

9.We___a____in a low voice when someone suddenly broke into the room
a.were singing b.are singing c.sang d.sung (past continue tense & past tense)

10.Were had your brother studied before he__c______to college in Hong Kong
a.goes b.had gone c.went d.has gone (past perfect tense & past tense)

11.Don't touch that wall! It__d______painted ( present tense & present perfect tense)
a.had just been b.has just been c.was just been d.has just