Make sure you must keep the fish tank clean .请问这句话错在哪里?

Make sure you must keep the fish tank clean .请问这句话错在哪里? You must clean the fish tank twice a week.改为祈使句___the fish t you should keep the fish tank clean中keep是什么词性? jim,_(clean) the fish tank right you must keep the fish in water. You must keep the bedroom ______(clean) We must keep the classroom cleanly.这句话错在哪里? 改错 1 You should keep the fish tank cleaning .2 You should to 一定不要让猫靠近鱼缸 You must ____________ the fish tank. They clean the fish tank for ____every week Asometime Bsomet you must keep quietly near the bird s cage错在哪里 这句话有没有错?We must make sure the road was clear before we cross