—________foggy day！
—Something must be done to solve the haze problem．
A．How
B．What
C．What a
My sister______two hours writing the article yesterday.
| A．paid | B．spent | C．took | D．cost |
The science lab is _______the right of the library?
| A．on | B．for | C．in | D．at |
Go straight and ______ left. The hospital is next to the post office.
| A．turn | B．take | C．go | D．carry |
Nancy asked me__________________.
| A．if can I arrive in time |
| B．that we made a mistake |
| C．what was wrong with my new bike |
| D．when are we going to leave |
The teacher told us the earth________around the sun.
| A．going | B．went | C．was going | D．goes |