We can address a lady “Ms” if we are not sure if she’s married or not.（)

If we work with a strong will, we can overcome any difficulty,（)great it is.A．what B．how

If we work with a strong will, we can overcome any difficulty, what great it is.（)

在路由器配置中，如果处于“Router（config－if)”模式下，执行（）命令可将路由器切换至&l

If we can ______ this recession, we will be in good shape.A．break throughB．go throughC．put

If_____letter arrives for me, can you send it to this address？A．noB．someC．anyD．some more

What we can learn from the video？A.We can easily change our life within 30 days if we u