A medicine may help with your illness, but it may make you , so you must be careful not to drive a car after taking such a medicine.
I don’t like eating chocolate. The taste is too ________.
-- Look at the boy running on the ground. Is it David? -- It _______ be him. I saw him go to the teacher’s office just now.
They’ve got two machines, but ________ works well.
The teacher asked me to ____ the exercise books before we began to do our homework.
If I _______ you, I would say another student could do it better.