I. Choose the best answer A, B, C or D to complete the sentences. 
11.	_______ to friends is nice but_______ is also enjoyable.
	a. Talking /being alone 	b. To talk/ being alone 
	c. Talk/ to be alone		d. Talking/ be alone
12.	Would you mind not_______ on the bus?
	a. in smoke	b. to smoke	c. smoke	d. smoking
13.	I'm opposed to (a) : phản đối_______ the money.
	a. borrow	b. be borrowed	c. borrowing	d. be borrowing
14.	The strap (quai/ dây) needs mending. It_______
	a. has mended		b. has to be mended
	c. has been mended		d. has been mending
15.	Don’t stay in this bush (bụi cây) to avoid_______ by snakes.
	a. bitten	b. to be bitten	c. being bitten	d. bitting
16.	She went to market without_______ anything.
	a. buy	b. to buy	c. bought	d. buying
17.	This article is worth_______ into your notebook.
	a. copying	b. copy	c. to copy	d. to be copied
18.	The boy denied_______ the glass window.
	a. to break	b. breaking	c. broke	d. to break
19.	The criminal admitted_______ this innocent (vô tội) child.
	a. killed	b. to kill	c. killing	d. had killed
20.	I intended to revenge (thả thù) him but my father prevented me_______ so.
	a. from doing	b. not to do	c. not do	d. not doing