When was China’s first cargo spacecraft, Tianzhou 1 sent into space successfully— April 20.

How often do you drop your e-pal a line—_______, but usually once a week.

Please check the shopping list _make sure everything needed .[ ]

is in hospital.— Oh, really I _____________ know. I_______________ go and visit her.

What time are you planning to ______for Shanghai tomorrow—Oh, at 8：30 a.m.