—At six.

A. What time B. How often C. When D. A and C

A. hard; good B. harder; good

C. hard; better D. harder; better

一They _______ food every day, or they will be hungry.

A. often; must be given

B. long; must be given

C. soon; must be given

A. go B. to go C. going D. goes

A. an, a B. a, an C. an, an D.a ,a

A. in B. at C. on D. /

A. costs B. spends C. cost D. spend

A. famous B. more famous C. most famous D. the most famous

【题目】- When is Lang Lang's concert?
- It's three o'clock the afternoon of December 18th.
A.at; in
B.at; on
C.on; in
D.in; on

A. that B. when C. where D. whether