[ Prepositions ]
The boy needs to concentrate _____ his studies. His grades are falling.
A. In
B. On
C. About
D. Over
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Grammar › ViewIt’s the ………………….. building in the town.
A. oldest
B. older
C. olderest
D. olldest
Modal Auxiliaries and Similar Expressions › View
Which sentence is correct?
A. You must to install the latest update.
B. You must install the latest update.
C. You musts install the latest update.
D. You must installing the latest update.