48. The answer this question is quite simple.
A. of B. to C. like D. /
47. We went to the Summer Palace a summer morning.
A. in B. on C. at D. for
46. Our seat is next his.
A. in B. on C. to D. with
45. Our son is afraid darkness.
A. of B. in C. from D. on
44. There is something wrong the machines.
A. with B. about C. of D. in
43. It is known us all that the earth is round.
A. by B. for C. of D. on
42. Can you see a hole the wall?
A. on B. in C. of D. at
41. My room is the fourth floor.
A. in B. to C. on D. for
40. The teacher always asks us to learn each other in class.
A. from B. with C. to D. for
39. Can the little girl do it the same way?
A. with B. from C. in D. by