The teacher and inventor________ from Germany．
A．is B．are C. were D．come
The students are sorry to hear that the famous writer_______ for ten minutes．
A. has left B．has gone C．has gone away D．has been away
None of the children watch it_________ ．
A．enough careful B．careful enough C．enough carefully D. carefully enough
Shanghai is larger than________ city in Gansu.
A．any B．any other C. the other D．anothe
r
一What are you going to do this weekend?
一Well，we’ll clean up the city parks _______ it rains .
A．if B. until C．while D．unless
---You’ve chatted for nearly two hours．
---Yeah. We're talking about the things_________ happened yesterday．
A．what B .that C．when D. where
