1.This is (such) a (happy/wonderful/pleasant) (experience) that I'll never forget it.
2.This film needs too (much)（space),so you'd better (store/save) it (in) your (hard) (drive).
3.Last month (during) our (tour/travels) in Japan,we ate some (traditional) food (called) Sushi.
4.I couldn't (wait) (to) (turn) (on) the TV set (as) (soon) (as) I got home yesterday.