The online shop sells _____ shoes at a very good price．（ ）
| A． |
child |
B． |
child's |
C． |
children |
D． |
children's |
It's reported that self﹣driving cars are expected to change the way we move around．
That sounds __________．（ ）
A．badB．badlyC．greatD．greatly
The manager of the hotel was waiting at the gate _______ the guests arrived．（ ）
A．whileB．whenC．unlessD．after
Liu Changjian，the command pilot of Sichuan Airlines Flight 3U8633， successfully _______ down the plane last month．（ ）
A．has broughtB．will bring
C．broughtD．bring
The local guide spoke ______ she could to make the visitors understand her．（ ）
A．as clear asB．as clearly as
C．so clear asD．so clearly as
I saw John in the park this morning．
It _____ be him． He has gone to HongKong．（ ）
A．can'tB．canC．mustn'tD．must