—Why are you so busy, Mike ? —I ______ a novel these days.
#100418
A
was writing
B
wrote
C
am writing
D
have written
推荐题目
.— Mr White didn't come last night, did he? — No. We _____for him . A whole night was wasted.   
#101475
A
had waited
B
have been waiting
C
were waiting     
D
had been waiting
Father finally came back home, which I ___ forward it.
#103583
A
had been looking
B
have been looking
C
looked
D
have looked
–This is the first time I _____ pictures with you .–Now it is time that you ______ a picture for me .
#101850
A
took , took
B
have taken , took
C
took , have taken
D
has taken , take