How long will they have to wait before the game start?[A]30 minutes. [B]20 minutes. [C]15 minutes.
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[A]be ready to[B]get ready[C]prepare for[D]prepare
Proper exercise plays a significant role in the rehabilitation of patients with various back ailments.() A operation B recovery C casting D relaxation
Though Mary continued working, she kept looking at the clock_______, thinking of her sick baby in hospital.[A]all the time [B]at once [C]after a while [D]for a moment
[A]and[B]so[C]but[D]because