—She looks very happy.She_______have passed the exam.
—I guess so.It’s not difficult after all.
| A．should | B．could | C．must | D．might |
—Go and have great fun! I will cope with _____ you leave to me properly.
—Thanks a lot.
| A．why | B．when | C．what | D．which |
－France ,a cab to school in such thundering weather.
—I will, Mom.
| A．gets | B．to get | C．get | D．getting |
Scientists say it may be five or six years _____ it is possible to test this medicine on human patients.
| A．since | B．after | C．before | D．when |
It was not he took off his dark glasses I realized he was a famous singer.
| A．when; that | B．until; that | C．until; when | D．when; then |
The number of children who___________ both parents to Aids ________ also expected to rise, reaching more than 26 million in 2010.
| A．has lost; is | B．have lost; are | C．has lost; are | D．have lost; is |