Chọn câu trả lời đúng rồi giải thích: 4. The photographs...during his trip are very pretty. A. Take; B. Were taken; C. Taken; D. Were taking

Chọn câu trả lời đúng rồi giải thích:
4. The photographs...during his trip are very pretty 
A. take   B. were taken   C. taken   D. were taking
5. The resort...by an American civil engineer is very famous 
A. design   B. designed   C. to design  D. designing