I have travelled a lot．I ________ speak four languages．（ ）
| A． |
can |
B． |
may |
C． |
must |
D． |
need |
When will Sally and Carol arrive？
I don't know． I have ______here for half an hour．（ ）
A．comeB．leftC．waitedD．arrived
Eric， ______playing that computer game． Why not read a book？
OK， Mom．（ ）
A．to stopB．stoppingC．stopsD．stop
Paul and Dale have ______in common， although they are brothers．（ ）
A．somethingB．anythingC．everythingD．nothing
Would you like to come to my party next Sunday？
I'd love to， but I ______． I have an important meeting that day．（ ）
A．can'tB．mustn'tC．needn'tD．shouldn't
Allan has a pet dog． I often see him ______the dog in the morning．（ ）
A．walkB．walksC．walkedD．to walk