Mr．Liu waiting here for about five minutes．（ ）
| A． |
has been |
B． |
has come |
C． |
came |
D． |
arrived |
We are not allowed to laugh when we_____．（ ）
A．ateB．have eatenC．are eating
______beautiful the Shennong Lake is! Everyday I must take a walk there．（ ）
A．What aB．WhatC．How
All roads lead to Rome． The roads are just_____your feet．（ ）
A．underB．inC．on
You look so weak! I think you_____go to see a doctor at once．（ ）
A．mightB．shouldC．could
There are two trees in my backyard． One is a Chinese date tree．_____is also a Chinese date tree．（ ）
A．The otherB．OtherC．Another