1. If you go by ______ train, you can have quite a comfortable journey, but make sure you get ______ fast one.
A. the；the B. 不填；不填 C. the；a D. 不填；a
2. He pretended ______ an important paper when the boss entered.
A. to read B. reading C. to be reading D. be reading
3. You blamed me in public. To tell you the truth, that was more than I could ______.
A. stand for B. stand out C. stand by D. stand up
