My mother _____ all the cleaning for my family, but recently she has been too busy teaching to do it.
#99234
A
will do
B
is doing
C
does
D
had done
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I ________ for Beijing next Saturday. Do you know when the earliest plane ________ on Saturday?
#99485
A
am leaving; takes off
B
Leave; takes off
C
leave; is taking off
D
am leaving; is taking off
Bob ________ with us together since he came to our school.
#101237
A
have worked
B
has worked
C
worked
D
will work
—I failed again. I wish I _________ harder.—But you _________.
#104161
A
had worked； hadn’t
B
worked； don’t
C
had worked； didn’t
D
worked； didn’t
(2013·山东，27)—Oh no! We're too late.The train________.— That's OK.We'll catch the next train to London.
#99732
A
was leaving
B
had left
C
has left
D
has been leaving
The three of us ________ around Europe for about a month last summer.
#101831
A
travelled
B
have travelled
C
had travelled
D
travel