______ the letter he wrote down his name .
A. In the end of B. At the front of C. In the beginning of D. At the end of
My mother _____ at home this time in the morning .
A. may be B. maybe C. may is D. May be not
—Can you give me some advice about learning English？
—I think you should spend as much time as you can _______ English .
A. practice speaking B. practicing speak
C. practice speak D. practicing speaking
Some people kill tigers and make medicine _______ their bones.
A. from B. of C. into D. out
Mother dogs have several babies _______.
A. on a time B. in a time C. at any time D. at a time
—______ does the fish weigh ? —Over five kilograms
A. How many B. How heavy C. What D. How much
