核幼浆老
参考答案：核幼浆老 巨幼细胞性贫血，细胞体积增大，核染色质呈细颗粒状，疏松分散，形成一种特殊的间隙，脑浆之发育比胞核成熟，形成“核幼浆老”的现象。
根据句意，用括号内所给动词的适当形式填空。
小题1:What __________(make) your friend so special?
小题2:The students are looking forward to (have) a holiday. They are just too busy these days.
小题3: — Why did you choose __________(sit) in the front of the coach?
— Because I often feel sick on the coach.
小题4:The earthquake started while I ____________(do) some shopping.
小题5:I hope you ___________ (not forget) to clean the blackboard next time.
While ______ in Scotland, he made friends with the natives there.
A．working
B．worked
C．he works
D．he is working
