David went to buy some stationery souvenirs（纪念品） my cousin.
| A．for; for | B．as; as | C．for; as | D．as; for |
"_________do you play the piano?" "Twice a week. "
A. How far B. How often C. How long
If my father_________ back, please let me know.
A. comes B. will come C. come
"Whose notebook is this?" "It ____ Jim's. It has his name on it."
A. can't be B. can be C. must be
Mr. Yang wrote a_________story. Most of us enjoyed it a lot.
A. two-thousand-words
B. two-thousand-word
C. two-thousands-word
"Mary, turn off the water_________you are brushing your teeth. " "Sorry, I'll do it at once. "
A. until B. while C. during