(2) There is a new road to the freeway. They just (　　) it yesterday.

　 ①opened ②are opening ③would open ④have opened

(3) He (　　) Chicago many times when he lived in the U.S.

　 ①has been visited ②has been visiting ③has visited ④visited

(4) We are all tired of snow. It (　　) for four weeks now.

　 ①is snowing ②snowed ③has been snowing ④will be snowing

(5) Mike and Bill (　　) each other since they were children.

　 ①have known ②know ③will have known ④have been knowing

(6) I'll wait here until you (　　).

　 ①will have come back ②will come back ③are coming back ④come back

(7) You have to return the book as soon as you (　　) reading it.

　 ①will have finished ②have finished ③are finishing ④will finish

(8) Your host family will be waiting for you at the train station when you (　　).

　 ①would arrive ②will arrive ③arrive ④arrived

(9) Mr. Tanaka is out now, and I don't know when he (　　) in the office.

　 ①will be back ②be back ③is being back ④is back

(10) The game will be called off if it (　　) tomorrow.

　 ①rains ②will rain ③raining ④to rain

(11) It (　　) ten years since the two companies merged.

　 ①is passed ②passed ③has passed ④has been

(12) Ten years (　　) since I left my home to work in this city.

　 ①is passed ②had passed ③passed ④have passed