21. Although bamboo is a kind of ______ grass, it looks much more like ______tree.
A. a; the B. the; a C. the; a D. /; a
22. ______ guests present at the party were reporters. Some of them were relatives from Mo Yan’s hometown.
A. None of the B. Not all the C. All the D. Neither of the
23. The people who have moved to the new settlements are holding a party as if they
______ a festival.
A. had been celebrated B. have been celebrating
C. were celebrating D. would be celebrating
