单选题 － This is Jenny speaking. May I speak to Dr Wang? － ________. I’ll tell him to call you back.

单选题 My cousin became a country doctor ________ he finished medical school.

单选题 May I take your order, Mr Wang? I'd like a cup of coffee and a cake ________

单选题 I could ________ understand what he was saying because it’s ________ to follow a quick speaker.

单选题 － Do you want to watch the basketball game in the park? － ________, but I have to do the household chores first.

单选题 － Let’s _________ some snacks. － Better not. Eating is not allowed in the library.

单选题 － Wow, there are so many people in Tangcheng Scenic Area. － It is always full of visitors, ________ during the holidays.

单选题 Don’t throw rubbish everywhere, ________ our environment will get worse.

单选题 We live in a rapidly developing world. We will be left behind ________ learning.