Our math teacher ______ in our school for 20 years and he _____ here when he was 23 years old.
| A．has taught, has come | B．taught, comes |
| C．taught, came | D．has taught, came |
_____ is necessary for us _____ read good books.
A. It, to B. That, to C. It, \
-----You are going to visit the Great Wall,_____?
-----That’s right.
A. are you B. aren’t you C. don’t you
---- I am sorry I broke your pen. Let me buy you a new one.
-----_____. I have another one.
A. Never mindB . OK C. Thanks
Winter is coming. The weather is getting_____.
A. colder and colder B. cold and cold C. more and more colder
_____ lovely dog!
A. How B. What a C. What