His mother often helps him ___ English so he does better ___ English than others. |
A. with; in B. on; in C. in; with D. with; at |
____ the help of the teacher, Tom has made rapid progress ____ his studies. |
A. For; at B. Of; for C. By; on D. With; in |
Mr Brown had lain ____ the ground ____ four hours before they finally found him. |
A. on; for B. at; in C. on; after D. in; during |