A、 until
B、 while
C、 although
D、 because
答案:D
A、 until
B、 while
C、 although
D、 because
答案:D
A. high expectations
B. quick feedback
C. frequent criticism
D. effective communication
A. May
B. June
C. July
D. August
A. 15
B. 18
C. 20
D. 22
A. hard; careful
B. hardly; careful
C. hard; carefully
D. hardly; carefully
A. They are impatient.
B. They are flexible.
C. They are energetic.
D. They are competitive.
A. a
B. an
C. the
D. /
A. Walking
B. Walk
C. Walks
D. To walking
A. Hamburgers and salad
B. Some fruit and vegetables
C. An egg and an apple
D. Noodles, chicken and ice cream
A. rough
B. tough
C. dough
D. bough
A. singled out
B. tried his best
C. take to
D. come across