When Tim ___ why he was late for school, he just kept silent.
| A．was asked | B．asked |
| C．was asking | D．is asked |
—Are you going anywhere?
—I ______about visiting my sister, but I have changed my mind.
| A．think | B．have thought |
| C．will think | D．thought |
My husband always ______ me flowers every week before we got married, but now he never ________.
| A．sends; does | B．sent; does |
| C．was going to send; do | D．sent; do |
Three bridges ________ over the river five years ago.
| A．built | B．build |
| C．were built | D．are built |
By the end of last week, she______in the west of China for two months helping the homeless children.
| A．will stay | B．has stayed |
| C．would stay | D．had stayed |
Susan and Lily______tomatoes a nd other vegetables on the farm this time yesterday.
| A．pick | B．are picking |
| C．will pick | D．were picking |
We are glad to hear that the terrorists ________ by the brave policemen several days ago.
| A．are caught | B．were caught |
| C．have been caught | D．are going to be caught |
—The book store ________ a big sale. The books there must be very cheap now.
—Sounds great. Let’s go into it and have a look.
| A．will have | B．had |
| C．is having | D．was having |
Look, so many people are running out of the station. I wonder what ________.
| A．is happened | B．was happening |
| C．is happening | D．had happened |
Hurry up! Once the concert starts, nobody _______ to enter the concert hall.
| A．allows | B．allowed |
| C．is allowed | D．is allowing |