Chọn đáp án đúng điền vào chỗ trống:

Hiking the trail to the peak _______ be dangerous if you are not well prepared for dramatic weather changes. You _______ research the route a little more before you attempt the ascent.

Chọn từ thích hợp điền vào chỗ trống:

Keep quiet. You _______ talk so loudly in here. Everybody is working.

This place is too small; there _________ enough space for another person to live here.

Chọn từ thích hợp điền vào chỗ trống:

John is not at home. He _____ go somewhere with Daisy. I am not sure.

Our manager ____________ state the sales figures for all projects in the past 5 years, but he ________ remember where he left the car key.

Chọn từ thích hợp điền vào chỗ trống:

_______ I have a day off tomorrow? - Of course not. We have a lot of things to do.

Chọn từ thích hợp điền vào chỗ trống:

Jane often wears beautiful new clothes. She _______ be very rich.

Chọn từ thích hợp điền vào chỗ trống:

You _______ touch that switch.