You _____ read a book in the sun—it'll do harm to your eyes．                      

How kind you are! You always do what you can_________me.

Sometimes smiles ______ be false, hiding other feelings like anger, fear or worry.

 He had no choice but to go on because it is their agreement that no one ______ quit the plan half way.

 Given that (鉴于) you feel so stressed , you _____ as well take a weekend break to relax yourself.