26. My father is not going to Beijing by __________ plane. Instead , he i s taking ________train.
A. /; a B. a; / C. a; the D. the; a
27.— I had!
—You really suffered a lot.
A. What a time B. What time C. How a time D. How time
28. Animals are part of nature should be well protected.
A. or B. and C. but D. though
