如图所示，甲、丙物体在水平外力F的作用下静止在乙物体上，乙物体静止在水平面上。现增大水平外力F，三物体仍然静止，则下列说法正确的是
﹣Mum，could you tell me ______？
﹣In two weeks．（ ）
how soon will dad come back
how soon dad will come back
how long dad will come back
My grandfather _____ drink coffee，but now he ______ drinking tea．（ ）
used to； used to
got used to； gets used to
used to； gets used to
﹣May I speak to Mr．Lee？
﹣Sorry，he ______ Harbin，he ______ the city for two days．（ ）
has been to； has been in
has gone to； has been to
has gone to； has been in
﹣Would you mind my opening the window？
﹣______．It's so hot in the room．（ ）
Of course not
Certainly
Better not
When the boy heard the words，his face ______ red．（ ）
got
turned
changed
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