21.I will employ the man ______ they say is a fluent speaker of English.

A,who.

B,that.

C,which.

d.whom.

22."Then about tolstoy's great novels".

"Who_____ has read his great novels can forget their fascination?"

a,who.

B,that.

c.which

d.whoever.

23.Since the earliest ancestors of the whales were land creatures,the question has arisen as to how____________.

A,did the flipper adaptation of the whale originate.

B,was the flipper adaptation of the whale originated.

c.the flipper adaptation of the whale originated.

D,the flipper adaptation of the whale to originate.

24.Most (aggregate)rocks are fused,and,(as is implied )by the name,(has originated)(by the aggregation )of smaller stones.

25.The Amish,(whose)culture is (unique)American,have (developed)a (distinctive)tradition in organic farming.

26.By the time smith (graduates)from (dental school),he will be (twenty-six)(years of age).

27.(standing in the driveway),the house (appeared to be )much smaller than (it had seemed )(to us as children)many years ago.

28.Kevin is (particularly)(fond of)cooking,and he (really)(cooks)delicious meals.

29.I held an opinion that (a honest man)who married and brought (up)a large family did more service than (he)who continued (single )and only talked of the population.

30.After (the church )(the men)stood together (in the churchyard)(saying)he must be crazy.