When I came home, my father _____ an e-mail on the computer. 
#40545
A
writes
B
wrote
C
is writing
D
was writing
推荐题目
We _____ more than 1,200 English words already, do you know?
#38250
A
learn
B
will learn
C
have learned
D
are learning
The guests were _________ in the front rows ________ to the president attentively.
#36726
A
seating; listened
B
seating; listening
C
seated; listened
D
seated; listening
       of the students in our class      money to the quake-hit areas these days.
#40445
A
Two third; have raised
B
Two thirds; has raised
C
Two three; have donated
D
Two thirds; have donated