—What’s Jack up to in the shoe shop? He’s there for ages.
—It’s ______ that he hasn’t decided which pair to buy.
| A．sure | B．obvious | C．confusing | D．curious |
The children were left _____ of a neighbor when they went on holiday.
| A．in the charge | B．in charge | C．under charge | D．at charge |
----How beautiful the university is, Professor Wu.
----So it is. I ______ here for four years and my daughter is studying here too.
A. studied B. have studied C. was studied D. had studied
Welcome to our online mall! If you buy ______iphone4 here, you can get a watch for _____free.
| A．a; / | B．an; the | C．an; / | D．the; the |
—_______ for Beijing?
—Yes, and I’ll come back in two months.
| A．Have you left | B．Are you leaving | C．Do you leave | D．Did you leave |
Thank you for persuading my mother _______ the army.
| A．let me join | B．letting me join | C．to let me join | D．to let me to join |