There(happen)___to be only two eggs in the refrigerator

There(happen)___to be only two eggs in the refrigerator once I remrmber what ___to me I ___call the police A happens need B happen must C happened will There is ___to see.A、a lot of B、lots C、lot为什么这么选? Listen!There is something unusal _____in the next room.A:happening B:happen C:to happen选什么?为什么? On the beach,there is always someting __. A.happen B. happens C.to happen D.happening 非常急there's always something ______ at the mallA happening B happen C happens D to happen Look!What ______(happen) there? There is no rice left.We ___to get from the shop.A.want B.need C.decide there ___to those are twenty-five in all,do you think that's enough?there ___to those are twenty-five in all,do you think that's enough?A, adding B,being added C.added D.to be added I stayed there ____what would happen A.to see B.see C.seeing D.saw Do you know___over there A.what happens B.what was happend C.what is happen D.what did happen为什么选C不选B呢 there are so many dresses there that I really do not know ___to choose.A what B when C why D which There are some policemen over there.What's_____in the street?A.happening B,taking place C.happen D.take place There's apolice car in front of our neighbor's house.What do you suppose_____?A .is happened B.has happenedC,would happen D.did happen There have been many changes__in my hometown in the last ten years.A..happen B.happened C.happening D.to happen选哪个?为什么 There is a police car in front of our neighbor's house.What do you suppose _____?A.is happened B.has happenedC.would happen D.did happen What do you think ____if tomorrow there were suddenly no rice to eat?A.will happen B.would happen C.happened D.happens为什么?有什么语法知识! happen的过去分词能作定语修饰名词?There have been many changes ( ) in my school in the last three yearsA happen B happened C happening D to happen 最好能说明下每个选项