A. be strict with B. gatekeeper C. acquire D. preacher A. physicist B. knot C. entertaining D. knowledgeable A. fin B. deal with C. routine D. gaily A. engineer B. may C. even though D. amber A. underline B. impolite C. by train D. National Day A. slim B. one-to-one C. power D. slept A. waterlogged B. what color C. field D. fibre A. scarf B. infinity C. help yourself D. disabled A. unclear B. ox C. use D. everywhere A. tidy the desk B. do some cleaning C. record player D. slurp