You can feel better ________ you take a walk in the park just for 20 minutes.
| A． |
if |
B． |
before |
C． |
until |
Dr. Zhong Nanshan is a pioneer has made a lot of contributions （贡献） in the field of medical science．（ ）
A．whichB．whoC．whoseD．what
We will achieve our Chinese Dream earlier if all of us ．（ ）
A．pull togetherB．pulls together
C．pulled togetherD．will pull together
It's easy to travel from Beijing to Shanghai by taking the high﹣speed railway．
Yes， it's about ．（ ）
A．eight hours rideB．eight hour's ride
C．eight﹣hours rideD．eight hours' ride
Music makes our life colourful， and helps us to relax． ， English songs can also help us learn English．（ ）
A．ExceptB．BesidesC．AsD．But
I'm afraid his radio is too noisy． Will you please tell him to a little？
OK．（ ）
A．turn it downB．turn it up
C．turn it onD．turn it off