21. ----Whose advice do you think I should take?
----______.
A. You speak B. That’s it C. It’s up to you D. You got it
22. Believe it or not, there is ______ as standard English.
A. no such a thing B. no such thing C. not such thing D. no a such thing
23. The insect ______ a powerful drug which affects mosquitoes.
A. contains B. includes C. contained D. included
