non-native speaker 2016-07-13 Q47 V28 TTL620 SC 28% timing 1:28 CR RC 70% timing: 2:00 2016-08-06 Q50 V37 TTL720 SC 87% timing:2:35 RC CR 60% timing:1:30 awful time management... Since SC questions weigh more, I prioritiezed this quesiton type this time... SC question on the real test looks very dif...

Can "comma ing" modify one of the verb(action) of the subject of the subordinate clause? I got an OG problem with a similar structure like this one: I've modified the content becuase of the OG copy right issue. Scientists use a tool to monitor waves that orininate in the Mar's crust and ri...

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Choice D uses "but also" alone. May I understand the usage of "but also" alone? I understand "not only..but also" and "not only ...but " both mean reinforcement while "not...but.." means contradiction BUT I've never seen how "but also" alon...