一、单项选择( )1. My boss is waiting for the report, so I can't leave here ________ I finish it. A．since B．until C．though D．if( )2. —Do you know ________ The Belt and Road Forum (“一带一路”高峰论坛) began?—On May 14th, 2017.A．that B．when C．if D．where( )3. Mr. Li ________ climbing the mountain this weekend.But we don't agree because of the weather.A．advice B．suggest C．suggests D．suggestion( )4. Come home before dinner time, Peter!—I ________， Mom.A．promise B．guess C．wish D．admire( )5. We ________ Tian'anmen Square on the way to school.A．pass on B．pass by C．pass to D．come out( )6. I can't tell you what she said.I've promised ________ it a secret.A．keep B．to keep C．keeping D．kept( )7. —You should ________ the customers some tea before meals.—But they said they couldn't wait to eat.A．serve B．invite C．provide D．library( )8. —I feel upset because I am too heavy.—________ do more exercise to lose some weight?A．Why don't B．Why not C．Why not to D．Why don't ( )9. —Excuse me，could you tell me ________ the train will leave?—Sure，it w |
