The lecture, ____ at 7:00 pm last night, was followed by an observation of the moon with telescopes.
A.starting | B.being started | C.to start | D.to be started |
I was reading attentively in my own room ________ suddenly he knocked at the door.
A.when | B.while | C.then | D.as |
He has five___________ , and they are all doctors working in the same hospital .
A.sons- in-laws | B.son-in-laws | C.sons-in-law | D.son in laws |
I’ll go to fight in the battle __________ you go or not .
A.no matter | B.whether | C.even though | D.if |
There are countless ________ leaves as if they were a red blanket_______ the ground.
A.fallen; covering | B.falling; covered |
C.fallen; covered | D.falling ; covering |
he has been working so hard . __________ he could answer such a difficult question.
A.No wander | B.No wonder | C.why | D.because |