21.“What were you doing when Anna phoned you?”

21.“What were you doing when Anna phoned you?”
“I had just finished my work and ______ to take a bath.”
a.starting b.to start c.have started d.was starting
22.“Have you gone to see the doctor?”
“No,but ______ ”
a.I go b.I`m going to see c.I go to see d.I`m going to
23.I had hoped ______ my letter.
a.her to answer b.that she answer
c.that she would answer d.her answering.
24.Charles Dickens(who had died) ______ a lot of novels.
a.wrote b.has written c.had written d.was writing
25.Yu qiuyu (who is still alive)______a lot of novels.
a.wrote b.had written c.was writing d.has written
26.How many people ______the conference on self-improvement?
a.attended b.is attending c.do they attend d.did attend
27.“Did you write to Grace last summer?”
“No,but I`ll ______ her over Christmas vacation.”
a.be seen b.be seeing c.have seen d.have been seeing
28.“Could you give these books to Mr.Mackintosh?”
“Certainly,______ him about something else in any case,so it won`t be any bother.”
a.I`ll see b.I see c.I can see d.I`ll be seeing
29.“What`s the matter,Ali?You look sad.”
“Oh,nothing much.As a matter of fact,I ______ of my friends back home.
a.just thought b.have just been thinking
c.was just thinking d.have just thought
30.Look at John!What ______
a.does he b.he is doing c.is he doing d.does he do