They __(not be) able to have lessons for 3 months

They __(not be) able to have lessons for 3 months three years __,he said,__ that they might not be __ __ __ to the new __ then. If those animals （）（not project）,they will not be able to survive 动词填空 They __(not be)at school the day before yesterday. they failed to finish the project in time.i regretted______them.A to be not able to help B being not able to help C not being able to helpD not be able to help为什么不是其它选项呢 not be able 请举例 Harriet was afraid they might not be able to make the trip. They ___(not be)able to have lessons for 3 months. They didn’t pass the exam last time,I regretted _____.A:to be not able to help B:being not able to helping C:being unable to help D:not be able to help They failed to pass the exam last time,i regretted_____A、to be not able to helpB、being unable to helpC、being not able to helpingD、not be able to help选哪个 为什么? Do not you be able to I will not be able to leave They _________ solve these problems in one day.　　A.can’t be able to B.will not able to C.are急111 they just focus on whether you will be able to cover this job or not.神马意思.尤其是 cover这个词 I will be able to do it __ my holiday be not able to do sth be unable to do sth区别They failed to pass the exam last time,I regretted ___.A.being unable to helpB.being not able to help pass The idea is that lenders will be more responsible in making loans if they might not be able to pass off risky mortgages to investors. They might be able to afford a new car .be able to 能用can替代吗?