My grandpa knows the history and medical _______ of many plants．（ ）
A．wealthB．priceC．valueD．cost
When Flight 3U833 finally landed in Chengdu，______of women cried． Fortunately． ______of the 119 passengers in the plane were hurt in the incident（事件）．（ ）
A．some； noneB．some； neither
C．any； noneD．any； neither
If I _______a two﹣week holiday next year， I will take part in a short study tour to Beijing University．（ ）
A．tookB．takeC．will takeD．are taking
Hi， Anna． Are these your sister's pencils？
Oh， no． They're not ______．（ ）
A．herB．himC．hersD．his
In fact， pandas have become so popular that they are now a ______of China．（ ）
A．subjectB．symbolC．signD．spirit
More and more foreign students begin to learn Chinese， and many of them _____Chinese better and better now．（ ）
A．are spokenB．spoke
C．has spokenD．are speaking