The doctors are doing all that they _______, but she's still not breathing properly.
A. can
B. could
C. shall
D. might
Đáp án: A
She gave him a _______ look. “Are you really sure?” she demanded.
The company needs to reduce its _______ on just one particular product.
We saw a quick film showing the various stages in the _______ of glass.
Choose the best answer A, B, C or D for each sentence
We're reading a _______ book this week.
If the product doesn't work, you are given the _______ of a refund or a replacement.
He would never do anything to _______ the lives of his children.