词汇，按要求写出相应的词或词组
1. R（同音词）_______ 2. to（同音词）________
3. what's（完全形式）__________ 4. is not（缩略形式）_______
5. stand up（反义词组）__________ 6.he （复数）_______
7. yes（反义词）_______ 8. knife（复数）_______
9. bus（复数）_______ 10. it（复数）_______
1.are, 2. too/two, 3.what is, 4.isn't, 5.sit down,
6. they, 7.no, 8.knows, 9.buses, 10.they
B
C
D
means______. 
B
C
D
