32. Frank put the mediocre in the top drawer to make sure it would not be _______ to the kids.(A) ac
23.Scientists are convinced the positive effect of laughter physical and mental health.(A)of; at (B)
32.Never before seen anybody who can play tennis as well as Robert.(A)had she(B)she had(C)has she(D)
29.Please call my secretary to arrange a meeting this afternoon, or it is convenient to you.(A)whene
33. The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
33.Having finished her project, she was invited by the school to the new students.(A)speaking(B)havi
24.When asked why he went there, he said he was sent there for a space flight.(A)training (B)being t
34. The government plans to bring in new laws _____ parents to take more responsibility for the educ
35. Some of you may have finished unit one. _____, you can go on to unit two.(A) If you may (B) If y
30.We arrived at work in the morning and found that somebody into the office during the night.(A)bro
25.Parents much importance to education. They will do their best to give their children that pricele
34. Animals suffered at the hands of Man ___ they were destroyed by people to make way for agricultu