[ Grammar ]
I’ve tried those tablets and they are not__________in helping me stop coughing.
A. effective
B. successful
C. profitable
D. helpful
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Tenses › ViewShe ……………..(leave) home at 6 yesterday.
A. left
B. leaved
C. leaves
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Grammar › View
The athlete jumps ________ the hurdles as fast as he can.
A. on
B. over
C. under
D. through