—_______ they _______ to the concert ?
—No. They stayed at home and watched TV.
A. Do ; go B. Did ; go C. Have ; gone D. Are ; going
—Did they have fun _______ the summer Palace ?
—Yes. They really enjoyed themselves there.
A. visit B. visited C. to visit D. visiting
Frank wanted to learn to play _______ guitar, but he didn’t have _______ guitar.
A.the ; the B. a ; the C. the ; a D. a ; a
There are a lot of colorful flowers on __________ side of the street.
A．all B．both C．either D．every
It’s hot outside, please keep the door __________.
A．open B．close C．opened D．closed
I didn’t know he came back __________ I met him in the street .
A．since B．when C．until D．after
