_______ he was 12, Einstein had learned advanced mathematics by himself.
| A．As soon as | B．At the time | C．By the time | D．During the time |
He has made a lot of films,but _______ good ones.
| A．any | B．some | C．few | D．many |
In crowded places like_____airports and railway stations,you _______ take care of your luggage.
| A．can | B．may | C．must | D．will |
—Where’s that report?
—I brought it to you _______ you were in Mr.Black’s office yesterday.
| A．if | B．when | C．because | D．before |
—How can I apply for an online course?
—Just fill out this form and we _______ what we can do for you.
| A．see | B．are seeing | C．have seen | D．will see |
This is a junior school.You should go to a senior school _______ girls of your age.
| A．for | B．about | C．from | D．to |